Except the subs are constantly dropping off, people need a story arc, a line of progression, not just "lol ding max level full epics in a week".
The sooner blizz brings back TBC, or, even to a point, WotLK, back the better.
Oh I agree, I put just over 4500 hours in on my time on WoW my main expansion being TBC, I loved WoW back then. It actually felt like you were getting somewhere when you had to put some serious work in just to get raids unlocked but Blizz wanted all the player base to see raids and not just the so called 5% of players.
Getting geared for raiding, getting that purple you needed and god damn the amount of pm's I used to get on my warrior decked out in full t6 with a bulwark it was unreal.
I had to do the same when it switched from free to payed viewers.

