Queues are longer right because of the gap between patches. Not to mention if a tank player does pvp as a dps, tank or healer 1 or more times during the week, it reduces the need to run DR EX. If there are other players like me or players that simply dont run DR EX and just pvp, they reduce the amount of tanks as well.

Also by now those two dungeons are boring. I have ran those 2 dungeons so many times its literally gotten so bad that I cast the same move at the same spot, etc that I can almost do the dungeon blind folded.

Many tanks dont have patience for small pulls and slow burn which is why many people feel most tanks are rude. As a tank you have to have alot of patience for the group and most importantly confidence for yourself.
Alot of people thing player commendations are stupid. But when I switched from SMN and started tanking around 2.1, getting all of those player commendations kind of gave me confidence not only to continue tanking, but to learn more about tanking.