Mac is right, you looking to spend about £30 maybe even less depending on where you go. Playstations are very cheap. You can get a good condition original Playstation and a PSone for about £10 on eBay but it depends if it bundled with controllers, memory cards or games
Click me!
You can also find AE and AO for about £6-£10 and the price depends if the game is in it's case or not. I would highly recommend buying one in the case because it protects the disc and also it looks cool
Also if there is a car-boot sale near where you live, maybe look there; People usually sell stuff so cheap. (eg I got a SEGA Mega Drive II with games and 2 controllers for £5
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