It depends on the game you want to play. Popular games should be available on both systems. Both systems can be bought dirt cheap through the Facebook market. Please note that some older systems may have issues, e.g, fan noise, missing slots, worn-out lasers, etc.

Also, there has know to be systems that have been bought with allsorts of insects/bugs in them. E.g cockroaches.

Both systems are fantastic. The only gripe I had with the PS3 is when you need to factory rest the systems.

Good luck. I hope you find what you want.