Why do they go for so much more on eBay? Why does anything? I see outlandish prices for items that are either: not that collectible (yet) or just plain common stuff from vinyl to CD's that are laughably overpriced. Fact is, as in anything else, you have some opportunists and dummies for sellers, and mainly the uneducated or dummies for buyers. Whatever anyone will pay on a given day is what anything is worth in the seller/auctioneer's world.
This comp, though, seems to have gotten some hinky distribution--easy to find in some regions, hard to find in others.
ED