Apple never HAD dominance in the market of "ultra-cheap video players."
That market is massively growing, and Apple doesn't want it.
The market of app-platform tablets? I think Apple's doing just fine there. It's a market not growing as fast: the shift from PCs is slow (will never be 100%) and people keep their iPads a long time. But the tablets do more and cost more, and it's a market Apple created and wants to be in.
Not all tablets are created equal. Look at market...