Same, the PSP was my first introduction to homebrew gaming and custom firmware. Having all those emulators on a handheld blew my mind back then. I actually still have it in a drawer somewhere- which reminds me, check your battery! You don't want a bloated battery ruining such a lovely device (or burning your house down)
I recently found my PSP with the battery cover popped off by a swollen battery! I'll need to pick up a new one but I'm glad to have caught it before anything too catastrophic happened.