How hard are these to find?

I ask because I came across a some in one of the B&M's around here about a year and a half ago and they said they aren't very common as they are "only shipped to a handful of shops worldwide". So I bought one and loved it, and my wife recently gave me one as a present that she found at a different local B&M.

So two shops in this crappy little city have "rare" sticks? Something doesn't smell right here, and it's not the Acid's on the shelf.