Thanks guys!
@mohit: Yeah, I agree that pirated games are more affordable, but with the PSP you don't necessarily need to have too many games. As I said earlier, it is a complete entertainment solution, so if you don't have many games, use it as an MP3 player or video/photo viewer.
Besides, when you buy a PSP, you might as well not upgrade the firmware. If you have version 1.0 or 1.5, then you can play literally thousands of games on the PSP for free by means of emulators and remakes of older games.