Regarding the original topic:
I watch Linus' videos to learn about the state of the tech market because I enjoy it and I enjoy how LTT covers them. Even if there are products that I'm never looking to buy or won't be able to afford any time soon, I feel like I can learn something from these videos so I watch them.
That recent eyefinity video?
I'm unable to afford that, but not only was it really interesting, it was educational not just because" Linus said this and thus I learnt that", but because it provides insight into these types of setups, allowing me to judge the qualities of such a setup for myself.
The bluetooth paper airplane video?
I'm not looking to buy that and I didn't really learn anything that I wanted to know but at least I got a gift idea out of it and I thought it was really cool. However, my first though when I saw the video was: "doesn't this belong to something like SuperFun more?" - something to consider maybe.
The need for seat gaming chair video?
That's definitely not directly tech related, but it's something relevant to the majority of the subscriber base and I thought it was good to know - I think it's fine and not really out of place.
The baby monitor video though? I watched it because I thought that because Linus was reviewing it, it might be something cool or interesting right? I was disappointed when this was not the case and I felt that it was just a random (albeit well-made) review of something irrelevant to at least me, and I'm guessing at least the majority of the subscriber base.
In summary, I think that as Linus was saying, choosing not to review boring products that really have no new features or out of the world performance or anything like that is fine since there isn't much to gain out of these reviews. However, occasionally reviews are really out of place and I feel don't belong to this channel or don't really deserve a LTT review at all (mostly lifestyle-related products and some indie game "impressions" way back at some event).