Hehe...I eventually abandoned that quest and then joined a ST run with guildies when we were already all in MC and BWL gear...and man..not for one minute did I regret that I never saw ST as current content. I loathed that place, I loathed the winding entry, the confusing setup...everything. I loathed it again when I went there at lv 80..don't ask me why, possibly for an achievement or Holiday event (Elders?)
My warlock mount quest was borderline what I could stomach and I hated having to impose on guildies and beg them to go AGAIN to freaking DM, which people were sick of. The Onyxia questline was another example...it would probably have been fine without the 5 man part, which is great if you do it with 4 people who are all on the same stage, but sucks badly if you feel "forced" to help others as your raid group has a constant fluctuation of people leaving and entereing..and the new guys ALWAYS still need that Onyxia attunement. And still you cannot fly...all groundmounts, travel to every place again and again on landmount. Oh yeah..and in some case wait for the poorer players who couldn't afford a mount and were STILL WALKING at lv 60. I spend a lot of time WAITING and NOT playing
Weird that I liked raiding when at the same time Classic WoW gave me a deep hatred of 5 mans which always were a pain to assemble, a pain to travel to and a pain to finish. Maybe it was because I already had a job and family back then...but the looooong afternoon in LBRS / UBRS eventually shattered all interest that would every have existed in dungeon crawls.
But hey...whoever loved it, more power to you.
I still believe it worked because we had no comparison back then. I predict that a company who would release a game with the restriction of Classic WoW today might get the eternal love of some die-hard Old school gamers...but most likely not a commercial success.