In essence, this board went for a fortune for the same reason those DKB MegaChips go for 40-50 dollars... It's not so much that you're buying a lot of RAM, as that your buying the RAM to use it Where you need it. (DKB MegaChips are used in Toaster 2000s to let them run the 4.X software). I could probably get 128megs of ram easy for the price of a DKB Megachip, but I couldn't ever use it in my 2000...
man I still need a dkb megachip, I would just never pay that much for one... lol