When I first got into GEC (not that long ago, about late 2014, I believe) there were a lot of patterns readily available that are quite coveted now.
The 82 Dixie Stockman comes to mind, as I was too short-sighted to have picked one up. Lots of good stag was available on that pattern.
Probably important to remember that, while large for GEC, the overall production is still quite small, and when they are gone (into the hands of collectors and users) they are not going to be made again in that configuration. It's nice for the dealers to have some stock on hand to sell to new GEC enthusiasts as well.