Never seen a $50,000 wax and I know the 50K reference was made with respect to R&D but I know that Zymol produced a product called Solaris. It went for 30K, Waterford Crystal container and all. They were only supposed to make 25 containers of this product and of course it came with lifetime refills.
I don't know if this reasoning makes any sense but they no longer show it as available on their site. I wonder if this means they sold all 25 units. I think it was BlackBart that picked up a couple of these when they were available. He got 2 so that he wouldn't be without while his container was being refilled.
Here's what 30 grand worth of wax looks like: