In a low pop situation, there's an issue where players levelling professions want to buy materials, but there aren't any to buy, because the purchases are so sporadic that it's not worth it for gatherers to continuously list items. End result, people need to level an alt and farm their own stuff or ...

Combining the auction houses would be a great idea, because the servers population is so low that there's hardly anything to buy on any of the auction houses. The easiest way to do that would be to just to connect all of the Horde and Alliance auctioneers to the Goblin auction house, so it's all ju...