I like very much the "Real Eyes Effect", and I think that 4 oz is quite a huge coin. Mintage is very low so for me is yes, yes, yes, I have 3 good reasons to buy this coin Alex.
Beautiful coin, looks good enough to eat. Worth owning and framing it to keep on a stand on the mantlepiece to look at every day.
Awesome looking coin, probably poor investment. If I had money to throw away at pretty things I'd certainly get one though.