I definitely feel like my tastes have narrowed with age. Or maybe it's just that I've found a few games to really really fall in love with, and not much else pulls my attention away from grinding those top favorites.
When I was a kid, I could only get a new game every few months or so, so I kind of had to make the most of each one. Now I've got several hundred games in my Steam library, and more than half of are unplayed, because they don't grab me enough to boot them up over playing another ranked online set of riichi mahjong today.
I bought a Miyoo Mini Plus last year, just an impulse buy because it was on sale dirt cheap. Ended up liking it so much I wish I'd bought a more expensive model with analog sticks.
Meanwhile, my Deck gathers dust because it's just too bulky too fill the void left behind by the GBC/GBA/DS I grew up on.
First manufacturer to get SteamOS running on a form factor that fits in my pocket gets my entire bank account. Doesn't have to be beefy, just needs to run all my favorite 2D indie games.