We all just need to give SWTOR time to develop, we are looking at a couple of years possibly before all the bugs are ironed out and the game is a little more stable and tweaked to perfection. Although you may not believe it but when WoW first came out it wasn't perfect.
you don't even need to go that far. By the end of this year if they keep adding content and squashing bugs at the rate they are going. this game will probably have around 2 million in US and Europe.
now after they make a Spanish version and a couple different Asian Language versions then this game will be very close to WoW numbers.
I don't know if it will ever beat WoW but thats ok. As long as it does well I will be happy.
After all when companies compete the consumer wins.