Don,
We do in fact order enough medal sets for everyone who purchases annually, or lets me know they would like a set, and a few extras that we hope to sell (at $60 a set we don't have a lot of takers). We track how many sets we sell annually and try to order accordingly so that we don't have sets that remain in our inventory. As for the numbering on the silver medals--people have been buying the same numbered set for many years and they want that particular number for their set.

Hope that answers your questions,
Roy Nelson