When I get a game, I try to pick one that gives me the most. I really like Bungie's Halo series since I played Marathon with my dad when I was a kid. Bungie manages to make these really intense plots out of otherwise obscure, science-fiction games. Recently, I decided to replay the entire series on the hardest difficulty again. Defeating the seemingly impossible is always fun. The other games I like include the Need for Speed series and some other racing games.
Buying just a few games has left me more to spend on the real Camaro. Spending thousands on my NFS: Undercover Camaro doesn't get me to work, but saving for the real deal will allow me to arrive in style and speed.