Are there any valuable Amiga games?

[psxphill]

Dunno about amiga games but this C64 gem should be quite valuable:

I wonder for how much longer though. These things go in waves, nobody born in the last 25 years will care.

[psxphill]

I do not know about valuable, but I do know rare: Monkey Business. (Made by the Bruce Lee / Zorro people.) Never seen a crack.

A quick google shows it was written by Ron J Fortier (who did bruce lee, not zorro) and was released by other valley software (which was founded by Ron). The only version available online appears to be on the ST.
 
You could ask here:
http://www-sul.stanford.edu/depts/hasrg/histsci/index.htm