Cash can often get you a better price. In fact if I order a custom at a show, I have offered to pay cash upfront if I highly trust the maker. That has gotten me a 15-20% discount. You have to be careful with this of course, because once you've paid in full the maker has no incentive to deliver in timely fashion, but it has worked for me, and I think helps makers keep going in what must be a tough business.