The economy is just so bad right now. People are holding on tight to their money and spending it on essentials only. (that's what the news said anyway) You and your quilted items can't compete with shoddy goods produced in China and elsewhere where workers are paid 17 cents an hour!!!!! (I am glad you made one BIG sale, though......)
(Also, I've noted that many people go through a Craft Sale looking for ideas they can reproduce at home. They don't spend a cent but have a "good time" looking!)