The quilts that win the major prizes at the major shows in Paducah and Houston get bought for 10 to 15 thousand and up.
A lot of companies will pay any where from 5 to 10 thousand for large art installations in their lobbies. 5 thousand for a nice piece of textile art isn't too much.
Comparing what most people make as quilts to large pieces of textile art is like comparing apples to oranges.