Really interesting thread. For some statistics on quilting in America check out the quilting in America surveys done in 2014 and the last one I can find in 2017. Interesting reading about the $3.7 BILLION industry.
Here is a link to the results of the 2017 survey as well as who did the survery. A google search will also show results from 2014.
https://www.quiltinghub.com/Articles/ArticleID/474