Majority of the server is leveling to 80
If you take a look at any auction house or major city in Azeroth you will notice it a barren, with the exception of the few yet to buy WOTLK yet, twinks in the lower brackets and TONS of death knights! This shows that not much market activity is occurring right now. People are more concerned with getting to level 80.
Drop in Raiding
Raids have grinded to a halt, people are questing with the few exceptions of those who stop into take a peak at the new instances and do a run or two, this will cause the market for consumables to drop, especially flasks and battle/guardian elixirs.
Gear upgrades from Level 70+ Questing
Out of all the impacts WOTLK has had on the market place this was the area I found most affected. You will see TONS of level 60-70 Bind on Equip gear and recipes that used to sell for 1,000g+ now BARELY able to sell for 100g, obviously you can now get easy gear replacements from quests and no one wants to spend cash on lower level recipes when they are sure a better version will be available to them soon.
This sounds like terrible news for those who wanted to make money using professions or buying/selling on the auction house, but with change comes OPPORTUNITY!
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