True, because no other MMO compares to WoW, in fact as of this moment no other significantly developed MMO released on a major platform (please do not bring up Farmville) is even living in the same universe as World of Warcraft.
You can complain all you want about anything you want to about WoW, or Blizzard for that matter. You can complain that they cater to casual players, that there are too many hardcore elitests (funny how both of those arguments exist). That the game engine is broken (nothing is perfect and if that's what you are looking for you'll be sorely disappointed by anything you do.) and that nothing is balanced. But the fact of the matter is that on a comparative scale WoW is NOT Goliath and every other MMO is not David. WoW is the Death Star, and as of right now every other MMO is just praying not to become Alderaan.
As far as some of the features that exist in WoW also existing in SWTOR, I'd like to point out something. Entertainment (in any form) is a COPYCAT business, if it works for someone (and so far WoW is the ONLY THING that works.) then someone else is going to try it.
As a gamer myself do I find it disappointing that WoW is the only truly successful MMO out there? Yes, I wish I had choices to go somewhere else and try something else. Am I impressed that even given the COMPLETE LACK OF COMPETITION in the marketplace that Blizzard continues to upgrade/innovate on their product. Yes, frankly when someone has a stranglehold on a market it's common that companies spend time and money destroying their competitors not trying to improve their product. So KUDOS to Blizzard.
In all honesty all I can hope for is that Bioware and EA have figured out the key ingredient that Blizzard brought to the MMO table that made their game so unbelievably successful where so many others had only seen marginal success in the past. Whatever it is, I hope that Bioware, and EA found it, and that they USE THE EVERLOVING @%#$ out of it. Cause I desperately want SWTOR to be as successful as WoW. And I'm not afraid to say it.