They are just not thinking!
And I agree that it may have more to do with how much they are willing to pay than with how little they value our craftsmanship.
My neighbor does beautiful woodworking - Celtic knot open work wall art out of a single piece of wood. Are his prices too high? Not for the expertise and experience going into it, but for my budget, sadly true.
This is part of why I gift what I make. Plus I want to do it when I want to, how I want to and only if I want to. Some gifts are given several years after the original intended birthday, Christmas or whatever.