If Intel can disable a feature and sell something at a lower price, then they could also sell the same thing at that lowered price without the feature disabled. The only reason they don't is because they exist in a patent encumbered, (very) competition light environment.

(Binning because of imperfect production yields is different though and I don't have a problem with that. It's hard to tell how much of the K/non-K split is legitimate binning, and how much is just a bool in the microcode).