So much complaining; I played a combat rogue in Vanilla and that has evolved quite a bit since my AQ days; overall I think the class is fine. You get the most advanced stealth aspect compared to any other class. Heck druid stealth is garbage compared to the nice tricks and toys rogues in stealth get. Really I think sap and pickpocket though the oldest rogue moves are some of the coolest in the game compared to other classes. Yeah you can't sap targets in combat but throughout the years playing WoW questing and grouping with people as the stealthed member have always been a blast.
Really to me if you are complaining because rogues are balanced with hybrid or that they don't get some super cool laser light show trick to show off maybe you should try out some of the other classes in this game.