I don't think that quilts should be priced by the hours put into them. If you did that, you'd never get your money back. Quilts should be priced by their desirability. If the quilt is really a well-made showstopper, then it should be priced accordingly. If it doesn't have that, "wow factor," then no matter how many hours are put into making it, it won't pull in as much money. That doesn't mean that it isn't anything less than priceless to a friend, or family member that receives it as a gift.
Just my 2 cents.
~ C