Rare is certainly a possibility but for something that is "rare" to have value, more than two people must want it. Often times, the market on some really cool varieties is very, very thin.
I agree sometimes the only thing more rare than the coin, is the collector. I wasn't trying to find out about value.... I was trying to determine if its really that rare. I've only seen this one, but to be honest I haven't really looked for this variety at shows.