Sounds like a personal problem, the roulette is not broken, it's how you perceive the expectations to be. I would think the word roulette would give a hint, and regardless if it's the first run you still get a mayor bonus. Your just helping out others as well which is the whole purpose of it. If you just take the penalty it's your choice, If you want a specific dungeon range then select it don't waste other peoples time waiting when your going to bail just because you didn't get what you want. How would you feel if a tank bailed on you after waiting 30 min+ on queue?