I've been to Round Top once. It's big. It's a bunch of stops along an FM off 290 as opposed to one place. Kind of an area if you will.
Lots of good food out that way. Decent steakhouse on Winchester, Texas.
I also don't remember buying tickets either. We just went. Made a couple of stops with the wives before we, the guys, headed on to Smithville to a family farm to begin our shenanigans.