Quote:
There's no point asking which professions, primary or secondary, production or gathering, will be the best for making money because it's dependent on realm, demand, and competition.
This.
As a general rule, and now that I have alts on 3 servers, I've learned to check the AH for prices of ALL levels of herbs, skins, and metal. Granted the economy of today is not necessarily the economy of tomorrow, but at least it gives me an idea of what's going on.
On Burning Legion, I had a level 9 undead priest sitting on 150G thanks to peacebloom and silverleaf. Timing was everything. Inscription had just come out with the patch before WoTLK so demand was high. Now she's not making quite as much from herbs, but it's still better than it was before inscription. I think now she has something like 500G at level 30
afterbuying level 30 mounts for a family of three, and some big mining/herbalism/leatherworking bags for the fam as well.
I have herb/skinning on another realm, because for some inexplicable reason, light/medium/heavy leather are going for about 5x what I see it for on the other realms.
I stay away from mining, because I just don't have the patience for it. Too much of a p.i.t.a., which is probably why the higher level metals are usually always profitable.