I've tried 2 of the stores here, Purls and Kiwi Knitting. Neither are very crochet friendly. Kiwi Knitting didnt even have crochet hooks that I could find and it seemed like only a couple books. Purls has no crochet classes beyond crochet-for-knitters and their yarn is mostly acrylic. I'm just tired of being treated like a red-headed step-child.
Links:
[1] http://crochetme.com/forum/iowa-city-ia-craft-thon
[2] http://crochetme.com/forum/river-city-yarns-edmonton-alberta-canada