Not everyone has access to the know-how to accomplish that, not to mention the tools and expertise. And the people that do certaintly don't have an unlimited supply of both BS-X units and mempacks either.
I guess that the best one can hope is that someone takes upon himself to hack the ROM to make it playable on a real SNES without the need of a BS-X (RD can be player on emulators but the emus emulate the BS-X to do so) like the F-Zero 2 hack that is floating around.