I'm not one to trash a perfectly good Mac, but...
That was a lot of good parts that went to waste. See my earlier post in this thread for how to make a useful machine out of a IIvx.
Unless you consider recycling the cases and using the mobos for an art project "waste," then nothing really went to waste. In addition to the FPUs and the CD-ROM I mentioned in my previous post, the HDs and RAM were re-used in other Macs; and the floppy drives became part of a larger lot of floppies that went to another Mac person to refurbish a bunch of his 68k machines.
So I don't see what good parts went to waste. And I don't think swapping in a Q650 Mobo counts as a way to make it a useful machine - that just assumes that someone has a Q650 mobo, and only the mobo, in need of a surrounding machine. Very likely the Q650 donor mobo comes with a good PSU, floppy, and/or case, and so you're wasting "a lot of good parts" by using your recommended IIvx upgrade method.
M