I agree that more and more people are getting to 77+ on all servers at this point. The supply of WotLK mats keeps going up, while the number of people needing the mats is levelling off or even starting to go down.
An interesting way to make some extra money and have fun is to roll a new alt and take 2 gathering professions (preferably mining and herbalism provided you have an addon or macro to make it easier to track both). In the next patch, any player that has at least 1 level 55 somewhere will be able to roll a DK on ANY SERVER. Most DKs are not going to go Leatherworker, so skinning low level mobs still won't be a great source of profit for a new alt. However, a lot of DKs will be going BS, Eng, or Inscription (who knows, a few might even go Alchemy) so I believe that the demand for low-level ores/herbs is going to explode once again after the next patch.
Even without the new patch, I have an alt that is selling stacks of 10 silver ore for 100g each stack.
I am NOT saying that a low-level alt is going to make money faster than your main, but I am saying that in the process of having some fun playing on an alt you CAN find it to be very profitable as well :)
Edited, Jan 8th 2009 4:05pm by jeromesimina