I got to 82 last night, before getting surpassed by 5 other rogues for server first, decided I'm too old to stay up all damned night, and went to bed to get back at it in the morning. People are already level 84 after 7 hours of being away. So far that's only about 13-14 hours of total played time.
Ore is unsurprisingly high, but all of my sleepily priced jewelcrafting items sold, today I'll have to give it a bit more attention.
Any way, I don't have much advice for you, or any insight yet today, since I'm fairly distracted with all the sweet new content.