Is anyone knowledgeable enough to comment on the possible effects? (cosmic radiation etc. etc. that might affect the coin condition).
I assume it depends on various factors such as coin metal(s) composition, encapsulation (plastic?), private key etched of paper printed etc. + on the total time that coin will remain on the surface.
Maybe they should have used a NastyFans Minted Seat coin.
https://bitcointalk.org/index.php?topic=352515.180
Seriously though, this is pretty awesome. I hope the coins they offer are denominated smaller than 1 BTC because I'd like to own one but I'm not sure locking more of my BTC into a collectible I'll never sell or peel is a good idea... The thought of some "enterprising" person going to the moon to find 1 BTC is pretty cool. Who knows, maybe someday Bitcoin will become so valuable that it actually helps pay for the cost of the trip to the moon.