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If you used to play Playstation games and you missed some PS1 and PS games then Buy Vita. You can play PS1 and PSP games aswell however not all titles are working. However in my opinion it is possible to make them work also ps2 too. I think it might work depends on the system of Vita or wait for firmware update or emulator. But I am sure most of the PS1 games are working try to download PS1 games on PS3 since the PS3-PSN have large game library compared to Vita-PSN.