WoW the single-player game?

In the discussion of cross-realm zones being introduced to World of Warcraft, I was struck by remarks like this one from The Godmother listing as one of her reasons against CRZ the fact that "I liked it when it was quiet.". The discussion is full of similar remarks from people who would prefer to have zones for themselves. But if you want a computer role-playing game for yourself, why would you want to play a MMORPG, with it's monthly fees and always-online DRM? Wouldn't you be much better

World of Warkraft...