Just like plenty of other topics here, this is very cool but more of a self-hosted thing. There is no plug & play solution that a newcomer would be able to achieve if you mention things like “Docker” to them.
So it is amazing for the self-hosting community but doesn’t really check the box of usability. 
Very much one of the best available solution as of right now from my research. 
Especially if you already have some NAS + Home Assistant setup yes.
YMMV when it comes down to performance / quality / gear with your hardware but it’s definitely privacy-respectful and flexible enough.
Not sure if your need is for personal or business use, but I wouldn’t take this path for either because you’re putting very sensitive data in the hands of somebody else. Highly not recommended. 
At the same time, if you want to have some business support in a work place where somebody would take the maintenance/issue resolutions in hand, then maybe? 
You can also get plenty of other alternatives that might be cheaper/more powerful depending on your needs. Overall, not everybody needs to have a quick inference + precise knowledge of what kind of Dobberman is in your living room, just knowing there is human/animal movement in a giving area is plenty enough (especially if you film outdoors and make masks). Their docs are quite good on that regard. 
I am sooooo happy that Intel is proposing such an amazing value GPU, a new Arc B770 is rumored to join the other Battlemages! 
I really hope Intel will continue their new Arc because they are the most healthy alternative to AMD/Nvidia at a super cool price for now! 
But nothing is less certain given how bad the situation is at Intel…and given that is kinda controlled by Nvidia now. 
But yes, having such a GPU is a very cool alternative to Coral-like accelerators especially if you have a cool NAS setup already. 

I guess it depends on how much cameras/their resolution/other details. It might be cheaper to have a beefy central processing unit that does all the heavy lifting rather than offload it to each camera/clusters.
But it is indeed quite crazy to think that you use the same thing for your fancy Cyberpunk 2077 in 4k@60 as for your living room’s CCTV. 
Indeed, it’s not a quick and simple product that works out of the box and is privacy respectful. Moreover, it is a very niche product given that it is for a personal use at home.
Business would just pay a company with their proprietary Windows-enabled tool and not care about privacy. Simple regular users will just buy a cheap 20$ cam on Amazon and install some shady app without thinking twice about what they’re signing for just because they saw a landing page with the famous "it's secure" + SVG icon of a lock combo.
There are definitely quite a few requirements to achieve a private + secure DIY NVR setup.
Yes, getting there is quite a journey for sure. 
Not sure when I’ll be able to reach it myself but it takes a lot of time/effort/money to do right.
Haha yeah, either use an evil tool/hardware or don’t implement anything are the 2 extremes.
The “do it right” in the middle of those is quite hard to achieve.
Flashing GOS is nothing to compare to a NAS setup + Docker knowledge + networking isolation + hardware tweaking + everything in between.
One is a “press the button in chrome then on the phone”, the other is the result of several entire domains of knowledge. 
Self-hosting is definitely picking up more and more in this community and it is amazing!
Not everybody is about privacy so bringing it to regular self-hosting communities is also a hard thing because not every enthusiast cares about privacy.
And even if somebody here posts a guide on how to set it up, it will be one way of doing things and if there is the slightest in your setup, then it will not behave as you expect it to be. There is hence a need of either:
- 20 ways of achieving the end goal
- a progressive walkthrough of all the different domains stitched together
- a livestream so that the audience could interact with the host (allowing for a more accessible guide)
The guide from Chuck that you posted is a good example of several issues:
- the written guide can be above the head of a lot of people already, because it assumes that you know how to navigate your way alongside Docker etc
- he also shows a few ways to achieve it but it might not be the way you want it, a video/written tutorial is not always the most interactive
- the prices might change yes but that’s not even a concern at this point if people are based elsewhere (me in EU, the stuff linked is either overpriced or just not available)
- that is meanwhile not a problem in itself, people should be able to source the components if they are easy to search for with a specific reference
- I haven’t watched this video specifically so can’t comment any further but there are overall quite a few other respectable channels that shared ways to achieve a working NVR setup

Overall, there is a bad news: PG will not be able to hire a fulltime self-host guide writer anytime soon I think.
Good news: there is definitely plenty of demand on that topic on the forum + I feel like more and more developers are joining the forum as of recently, hence more content via different mediums will probably pop up from the community this year. 
I’d say that NVR is still niche, topics like OpenWRT, Ente Photos or alike are still far more asked + needed + generic (I include myself in that lot
) but the time will come for NVR too dw. Also, you look quite savvy enough yourself to buy the hardware + figure the software part. 
The tariffs/RAM/etc is just a temporary thing and some people would be fine paying the premium. Otherwise, they can always use what they do already have, it is beyond the guide/teaching part anyway. 
Privacy will always have quite some friction to it anyway (unfortunately). 
I wonder where such thing needs to be asked. 
Agreed, this should be an overall starting point budget.
You could get lower if you buy some camera modules, print your own cases and have an already running homelab with PoE switches etc…but that is stuff that you bought before at some point so not really an “NVR starter kit” haha.
Currently it’s either:
- DIY bro, get a 3D printer + become a network expert + get some coding skills, and roll up your sleeves kind of situation
- subscribe to our
evil-we-dont-give-a-crap tier with our vibe-coded-reinvent-the-wheel mobile app that will charge you plenty without even doing E2EE because why would it? 
Something in the middle, that is respectful of the end users, plug and play, not owned by Big Tech, with no subscription and that is based on open standards still has an open slot.
But the amount of work + knowledge required is quite…abysmal.
And it’s hard to fill the gap from DIY → accessible normie product with a decent price.