It's a lot of money for the little processing power you get nowadays but you mustn't look at it like that I guess....
My CS MK2 has a custom firmware that should make it bootable without 060 libs when you insert a WB disk. Never tested this though...
The CS MK2 is easy to overclock; just insert a different crystal and away you go. Only problem is that the SCSI part (which you have to buy seperately) may not work in that case. I tried overclocking and it worked with my SCSI setup when I remove the cd-rom.
If you just use it at 50 MHz it is very stable and I have no trouble with it so far...