I don't think it is blasphemy. I put PowerPC upgrades in my 68ks for the same reason I enjoy collecting 68ks. They are rare and unique pieces of hardware.

If 68k Macs are to be treasured for their design and uniqueness, then so to should be the orders of magnitude rarer cards which are designed to be used in them. Besides, what other computer do you know that can dual boot between completely independent and binary incompatible (without an emulator) CPUs?! That's pretty cool, in my opinion.

Peace,

Drew