Best Buy's CEO says tablet sales are "crashing." Is this the beginning of the end for the tablet? According to tech consultancy IDC, tablets are still popular and sales are growing -- 11% last quarter, to be precise,. Still, that's a far cry from two years ago, when tablets were growing at a 60% clip. Meanwhile, the iPad has been in the doldrums, posting a 9% sales decline last quarter, which was preceded by a 16% slump the quarter before that.