Hmm.
I would advice you to buy a PS2 and buy the best games.
How much is the price of a PS2 this days? 100 $?
Games you should try for sure
Okami = This one for sure
Final Fantasy X
Jak and Daxter
Ratchet and Clank
Tekken 5
Gran Turismo 4
Ico
Shadow of colussus
God of war
Devil May Cry
Kingdom Hearts
Metal Gear Solid 3
It would be really strange if you don't like any of those games.