A creative's best work is born from constraints. It's why PICO-8 exists for people nostalgic for that specific olden era. I think the PSP could make a fantastic target for meatier handheld-focused games that put design first, as many of its second-tier games did. Lots of great strategy, platforming, and racing. A beautiful wide-screen with just enough resolution, just enough horsepower to drive it with rich, saturated 2D and some 3D, and a basic enough control scheme to rule out the lame tech-demo category of 3D action games. I cannot describe how much WipeOut, Namco Museum, and Tactics Ogre time I had on my PSP.

I didn't quite get the point of this comment, there's no denying any of it, actually I wholeheartedly agree with you, but what I was saying wrt practicality of playing PSP games.

You can of course buy that device, but from personal experience the novelty doesn't last very long and then it just becomes just another device in the drawer graveyard. Also no one's really making new PSP games anymore? so the novelty of the PSP remains in its construction and the software; which becomes limiting as time goes on.

The joystick, buttons all tend to break or stick after 20 years, replacements may or may not be easy to come by for most, so it just makes more sense into building your own retro game device that supports PSP emulation among others.

And the PICO-8 has produced some impressive projects, such as UnDUNE II (https://liquidream.itch.io/undune2) which reimplements the old Dune II game (which started the entire RTS genre). Yes, within the PICO-8's constraints. I loved Dune II, and while I don't plan to pick up a PICO-8 just to play it, I love that this exists.