I think they are pricing for the art value, but it is hard to tell. I have made commission pieces that were for offices, and seen quilts habging in other businesses, that cost a lot. The Dancer quilt that key4unc posted the link for, could easily reach that figure if a designer for a rehab center or spa bought it. In this economy, that is doubtful.
Putting that sort of price on a piece done on spec is risky though. Maybe the maker is just building a portfolio. She is willing to exhibit it - for a price - until it sells. It seems she is trying to break into a very specofic niche market, and by bold pricing, she is getting her work seen. I wish the picture quality was better.