WOW!!! This is the first "heated" discussion we have watched! Fun topic!
We collect AND send coins out into the wild. We just got one back from Iraq. (Thanks Krusty & Phoebus!)
As far as tracking/ traveling/ keeping is concerned, we have always gone with the idea that if we find it IN a cache, and it has a tracking number, let it travel, which is what the owner wants! We have found a coin in a cache, and the owner told us we could keep it if we wanted, but we thought that wouldn't be right, so we placed it in another cache, put it on our "watch" list, and have greatly enjoyed it's travels ever since.(Thanks Greatful Mike & Navibear)
We will climb down off our soap box now.