Would you be willing to answer a few brief questions about PlayStation Forums?
Ever considered Yu Gi Oh?
What genres are you into? That will help us list games better suited for you. Also don't forget that you have option of every single PS1 classic as they are $10 or less.
I recommend Pac-Man Championship Edition DX. This game is so much fun and very addicting for a Pac-Man game! There's even a demo on the PSN to try it out before you buy it.