All this talk of PA.... I'm starting to get homesick! Moved here to Tampa from Northeast PA just over a year ago. One of our last stops in PA on the drive down was in Hershey, as a matter of fact. Had to ride Chocolate World one more time!
I've been to Hersheypark, Kennywood, Dorney, and Knoebels. Knoebels more times than I can count, a handful of times to both Dorney and Hershey, and just once to Kennywood on a trip out to Pittsburgh in my late teens.
Hershey's not bad, but if I remember correctly the food and beverage prices there seemed a little higher than other parks in terms of the actual value of size/portion. In fact, one of the things that bothered me most about Hershey was the market place at Chocolate World... the packaged candy in there was just as expensive, and sometimes more expensive, than buying it at a grocery store. When I think of getting it direct from Hershey, I expect to be saving something! (To be sure, they do run different specials and sometimes have closeout deals. You just gotta be careful).