The recent controversy over the reminting of more Kooks, had me wondering which mainstream coin series has the best chance of numismatic appreciation in future? This is how i see it (pros and cons): Koalas - Pros - fairly low mintage. Cons - some of the designs are lacking. Kooks - Pros - low mintage, good design. Cons - getting reminted, privy marks. Lunars - Pros - low mintage, good designs. Cons - ???? RCM Wildlife series - Pros - fairly low mintage, good designs. Cons - milk spots really detract. Phillies, ASE, Maple - Pros - fractionally cheaper, Cons - design doesn't change, large mintages. Pandas - Pros - good designs, solid Asian demand, Cons - counterfeits on the market If it wasn't for the milk spots i would say RCM Wildlife coins would have the best chance of future appreciation. Followed by the Lunars due to their low mintages. Not sure about kooks any more. Comments, opinions sought on your preferences.