Yes, Nat.
There have been some real nice ones, especially the older coins.
I have the 10, 15, 20 and 25 year anniversary coins/medallions as well as two from the opening of EPCOT. My favorite one is the one from the opening of MK. That one is larger than most, almost like an Olympic medal. That was also the hardest one for me to find (as well as the most expensive).