Then you are a rarity among MMO players. As most wouldn't stay just for the storyline, especially one section that's 10minutes in length. Though admittedly, I don't know how that account for the majority of TOR, or do you mean just for you, it's a significant portion of TOR?
I mean the story portion to the game and the narrative in general make a significant portion of the game, not just the romances. If it didn't have the draw of Bioware storytelling it wouldn't be nearly as popular. While I can't speak for everyone I can say that I wouldn't have even considered the game if it weren't a KotOR sequel developed by Bioware. The fact that it was an MMO kept me out of the game for a while, but eventually I did play and enjoy.