I have one and I have been enjoying it.
For anyone wanting to try out the games, the community pages have community made games within the browser most of the time: https://community.arduboy.com/c/games/35?ascending=false&order=views
EX: https://community.arduboy.com/t/hopper-a-simple-action-game/4293



Why? For whom? The 80s are over, what am I supposed to do with an 1.5" 1bit display? Play games I played 40yrs ago, but now on the tiniest display I ever had? And 1bit? My first computer had a 1bit display. It sucked ass.
I’m no AAA-gamer that values gfx over gameplay (the contrary actually), but come on…
And all this for 100 moneyz? I could not think of any single use case this would beat a stinky smartphone, which I’d also carry. And even if I had no phone, I’d buy a used gameboy or some other handheld for that price.