I make a point to use quality supplies and even go so far as to provide a craftsmanship guarantee. It there is a problem to to the quality of my product, I fix it for free.
Once I made a twin size quilt with retail priced, high quality fabrics and batting. Then I quilted it with stippling on my home machine. Someone offered me $50 for it... Since then I've been shy of pricing things to people. They don't realize the time, effort and work that goes into these...