Makeb was an expansion.. Just like Burning Crusade, Wrath of the Lich King, Cataclysm, and Mists of Pandaria..
All of which every single sub in WOW has to pay for to play.. Do you have an issue with subscribers paying for expansions?? I mean it isn't a new concept.. What is it about paying for expansions do you not understand??
Subs paid $10 for the SWTOR expansion.. I paid much more for the WOW expansions..
And if you are going to roll your eyes at someone.. At least have the common sense to make sure you are correct in your statement or views.. Because in this case.. It is pretty common for subscribers to be charged for expansions.. Like Makeb..