There are at least three great shops in Wichita plus one south of Wichita in Derby. There's a huge shop about 75 miles east of Wichita on HWY 400 called Needle in a Haystack. They have a huge selection.
Here's a website from one of the central Kansas shop hops. It has a good list of shops towards the bottom of the page.
http://www.centralkansasquiltshophop.4t.com/