HEY! That TICKLES!
There are 11 copies at Amazon. Usually they wait for something to go out of print before they reprint it.
Of course, determining if something is out of print isn't an exact science, right? I mean, if the publisher is fully intending another print run, but only after current stock is depleted, then is it really out of print? Or is it just not locally available and so harder-to-get?