it’s expensive and rare, but that doesn’t mean that its value won’t increase someday, especially with the recent rise of interest in collecting retro gaming memorabilia. Also, playing a classic on its own console, without an emulator, allows...
This is a feature that lets you connect a PSP to either a PS2 or PS3 so you could get more content or transfer saves to/from them. There is a partial list here for PSP to PS2 : https://www.reddit.com/r/ps2/comments/atwi34/list_of_ps2_gam...