Have to laugh when people say that 060's are getting rare. Just on Amibay alone I've seen an increase in 060's for sale.
In the last few months I've seen at least 7 Apollo 060's @ 80MHz come up for sale. (they seem to be around 350 euro mark.)
I was watching these for awhile as I wanted one, and picked up Nova's although I need to get the other SIMM socket soldered on :-/
There's even a couple filtering through to Ebay although the ones on there are twice the price they should be.
There's always CPU's on there own being listed and if there isn't people seem to find them when asked for.
To me there's been an increase in these cards showing up.
There's a few older devices with them in, i.e. network devices/switches.. just a matter of googling a couple of models and sometimes you can get lucky.