I don't know what their margins really are so I am merely speculating. A couple months ago, I contacted a guy who makes these really cool brackets with wheels you bolt onto the frame so you can take a rolling shell to the blaster, painter, etc. Indiviually, the stuff I wanted went for about 1000, I contacted him and asked for a deal if I bought all three items I needed. He offered a 20 percent discount if I bought all at once. I agreed because thats 200 bucks for other stuff.
It seems hard to believe that a company would specialize in making high ticket items that few people buy on a daily basis and then sell them for only a few dollars profit a piece. If they do, then so be it but it's gonna be hard to get a bunch of guys to cough up 800-1000 bucks on the spot for an item they might not need anytime soon simply to save 50-80 dollars. I'm 1-2 years away from needing to buy a dash but I'd find the money if I was saving 200-300.
Consider this, every industry in the world in offering huge dicounts on their stuff these days but if you look at the classic car restoration industry as a whole, the prices are unchanged and some even have raised their prices in the past year or two as if everyone had disposable money to keep pumping into their cars.
Just my two cents worth.