I hate to agree that quilts don't sell well at craft shows, but that has been my experience. I helped my sister at a booth once, and it was so disappointing to see folks admire her fine work and then say it was all too expensive. And she didn't have items priced high. For example, a tote bag was priced $15. Her quilts were priced less than it cost to make them.
It was fun being with my sister all day, but it was still a sad experience. She won't do another one.
My advice would be to have a lot of lower priced items.
Dina