Gasoline is "cheap" right now because crude is relatively low. ($94.35/barrel).
Crude has been dropping for a number of reasons:
1) Very strong supply, especially because of our increased domestic production
2) Things are cooling down in the Middle East (Syria, Iran and Egypt).
3) Weak demand. We are still using ~4% less gasoline than we were a few years ago.
I think the young people enjoy it when I "get down," verbally, don't you?