Wouldn't it make more sense to dead drop the dollars or gold and sell the location for coins? I mean how are you going to send the old money without linking the buyer and seller together anyway?
You could do it anyway you want. Leave the old money in the same place after pickup.
For me, the fun is in searching for Bitcoins. It's about the experience.
Ah, got it. I was thinking more like super-secret covert exchange stuff. I can see how those geocashing hunts are fun. And everything is better with Bitcoin.
