I actually preferred the solo content in the original 5.0 tier. There was a huge variety of quests and factions, and I found myself doing different things and going to different zones, every day of the week. One day it would be Halfhill and Tillers, another day it was off to Townlong for the Shado-Pan quests. August Celestials in one of four different locations. Anglers once or twice a week. And so on. It was great.
By comparison, the other patches were far more limited. Although I still enjoyed them.