Buy machine at quilt show?
There will be a quilt show, within driving distance of my home, later this month. I'm going to the show, and I'm wondering if it would be a good place/time to buy an upgraded DSM -- Janome, Juki, Bernina. Do the vendors offer good deals on machines at the shows? Do local shops often have vendor booths at the shows, and if so, do they offer show discounts on their usual machine prices? Is it possible to buy the machines that have been used at the show (for classes or vendor demos)? If so, is there a "best time/way" to buy? Wait until near the end of the show? Or buy it early and pick it up later? How does one find out whether a demo machine is available for purchase?
Thanks!