i guess it depends on your market audience and what people in your area are willing to pay for art.
i went the the Empire Quilting Guild Show in NYC and the quilts on display for sale top out around $7000.
of course these were stunning quilts and in my opinion well worth the price and if i wasn't a quilt artist myself i would have no problem paying that price.
the biggest problem i see with this is people tend to want to see the work up close before they're willing to shell out that kind of money.