Honestly, the PSP is a pretty sweet little piece of hardware. Just like lots of consoles, they had great potential, but didn't work out. I'm thinking of the SEGA systems back in the day. Look at the gameboy. Everyone wanted one because they had awesome, portable games.
I like my PSP, but I never use it because I've played all the games I've wanted to play and I never play for more than an hour.
I also wish it were easier to do more homebrew stuff with the PSP. That would open it up to all sorts of things.