The GOCC is well worth the $20, I joined to get in to Coastermania, last year (which was my first.) I hope to make it to some of their events this year.
Yes, your guests also get ERT and meal tickets.
The ERT lines are not really that short. I believe that Raptor's lines were about 10-15 minutes, and Mantis' somewhat shorter. The Thursday before Coastermania was much better as far as lines went, the park was fairly empty, and that made for very very short lines. Coastermania draws a lot of people, way more than I thought.
In my opinion the food was pretty good, but was not spectacular, especially with a side of muffleheads. There were hot dogs, chicken, etc., but I don't remember any fries.
I think it's worth it, especially if you visit a day or two beforehand, but you get to meet a lot of great people.
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Tyler Adams
Cedar Point Web
http://www.zoomnet.net/~bmgain
*** This post was edited by Tyler on 1/17/00. ***