I use mine, and have been catching up on a backlog of games. Currently I'm working on Phantasy Star Portable 2, which thankfully I downloaded before they took it off of PSN, since the physical copy is like pulling teeth to find outside of Ebay.
I bought my first PSP alomst two years ago. Picked up a ton of games I can't even remember now. After about a month or two I put it down and didn't touch it again until about two months ago. Since then I haven't put it down. The only problem now is it's hard finding physical game without using Ebay.
Heck yeah. I sitll use my PSP. It's mainly a secondary MP3 Player, but from time to time, I play games on it. There's games out there that I still would like to play.