engines/emulators with the 060? I guess I can see that. I personally did not see much difference in the wholesale computing capability from 030 to 040 | and then from the 040 to the 060, I've had them all with up to 256M ram...
It was nice to say that I could run mame 0.35 or whatever under 060, or unzip stuff faster, but beyond that I couldn't see the overall advantage in it for anything other than a retrocomputing novelty.
same can be said for PPC - a few utils here and there...
if you are talking about highly optimized assembly routines and programs for 040/060 then I guess you have a point, esp when coupled w/ some of the overclocked 060s I'm hearing about. Those apps are few and far between, however.