You are not a ******, but you do need to think about the question. What are you compairing it to? if the awnser is Warrior/mage/priest you need to know some game history. they were the first 3 classes and realistly the most flushed out. Most classes have a huge gap in class quests, and partly for the reasons you have explained, why have a quest when you can do better before you would have been able to complete the quest ?
for the most part the class quests are a way to give you a class tool(pickpocketing for rogues, bear form for durids, hunter Pet quests.......)Very few classes have gear quests in the mid part of the game, that is of corse unless you were one of the classes that needed gear when the game was young(they have added piles of crap that mostly devaladiate the need for class item quests)
I will give you a example, the Warrior Whirlwhind weapon quest:
Sure if you have two buddies run you though the quest as soon as you can get it, you are sitting pretty with a nice soward/axe... but if you actualy did this quest, at a approaiate level, you would be salty with the time you had the item, because Uldman likely has a better weapon for you, if not, ZF sure dose.
So as the folks at Bliz developed the game they thought why add this type of stuff when the players would be better served if they made more general stuff that allowed the player to choose how they developed rather than making it the same game for every warrior, now they can hunt instances..... that kind of stuff
The only thing i see class quests relevent for is new skills, and honestly i would rather buy them then do a quest.