I just purchased a PS Vita, and I love it. I never had a PSP, but now I decided that I am going to buy one used on eBay and play old, dirt cheap UMDs. The only problem is that I don't know which model of PSP to get. They all have their pros and cons, and I need help deciding which one. So, which PSP model should I buy used?
The PSP-3000 doesn't run custom firmware very easily too. This is a plus, since there's no risk of bringing home a PSP and finding out it won't update official firmware properly because someone mucked with it before.
Do budget for an extra battery. People often forget about their PSPs, letting the battery drain until they're completely unusable.