Hell yeah! Dorney Park kicks ass. I live right outside of Allentown so i go there all the time in the summer. I like Steel Force. Now THATS a good coaster.
Hershey Park in Hershey, Pennsylvania is a good place for rollar coasters. And yes, they are linked to Hershey chocolate...that's one of the park's themes. There is a suspended rollar coaster called Great Bear. It's really good in my opinion.