There really is no issue here. As stated already, the prices are generally higher in these venues. A solution? Pack a lunch. Or get your hand stamped and leave and come back. It is just like gas prices. If you keep buying gas at that price, it'll still be priced high. I really don't like hearing the complaints of the food prices being high because there are simple ways around paying it... Just throwing in my 2 cents. :]
Anywho, I probably won't be visiting Panda Express because I just don't think that chinese food mixes well with Roller Coasters... lol. :]
Hope everyone enjoys their visits to Kings Island. :]