Lok'Tar Ogar!
Try to never just say, "My character isn't interested in that adventure." A lot of people mistake this for good roleplaying, because you are asserting your character's personality. Wrong. Good roleplaying should never bring the game to a screeching halt. One of your jobs as a player is to come up with a reason why your character would be interested in a plot. After all, your personality is entirely in your hands, not the DM's. Come up with a reason why the adventure (or the reward) might appeal to you, no matter how esoteric or roundabout the reasoning. -(Source)