We've seen it in the past in the real world and in the world of warcraft, Inflation.
When you ask your grandma or grandpa about the prices of things like Candy bars,a gallon of milk, and other things they will almost always say that it cost less, 5 Cent candy bars may sound good but there income was also lower. If there's one thing i have learned is history repeats itself.
In the world of warcraft inflation is also in affect, Quest's give more gold, BOE epics are dropping much more often. Prices on things that you buy from NPC's continue to lower like the prices for mounts and there training. Mobility is also in affect, You can now have a 60% speed mount at level 20, 100% at 40, 60 you can fly 150%,at 70 you can fly at either 280% or 310% speed. Flying mounts also make it easyer to cover more terrain and farm more ores,herbs,mobs and quest faster.
With the guild level changes guilds will have Tons of cash from Cash flow.
What does this mean MORE GOLD.That 20k gold that took you forever to get will be worth less then it was.
Now to the point today investors all over the world are investing in minerals such as gold and silver because they will always be worth a good amount of money and can be used as currency anywhere. World of warcraft only have 1 currency used between players so that is not a problem, we need something to invest in. The hard part is finding out what.
Due to Flying mounts in azeroth and profession changes ores,fish and herbs prices will drop. So they are not a good choice. We need to look at something that will rise in price.We need something that people are going to use, something like Runecloth.
I think runecloth will rise in price because of the 2 new races Goblin and worgen.
Factions love runecloth for some reason and its a great way to gain reputation with any
factions. When Burning crusade came everyone wanted the Hawkstrider or the Elekk's (Blood elf and draenei mounts) even though they were ugly. The prices for runecloth increased by a huge amount. Now think about this, back then everyone had to carry any mount they wanted in the bag and bags where smaller back then. That means that more people will want runecloth because the mounts will not take up space and they are in my opinion WAY cooler.
The one major flaw is... if blizzard decides to let the new races have a quartermaster or they upgrade the cloth used. I think the chances of that are minimal. ( If this were to happen i think you could just sell your runecloth on the AH for about the same price )
So what are you waiting for Get a level 1 to ironforge or Orgrimmar Buy/make a guild bank ( i suggest buying from another player who doesn't want it anymore) and buy all your personal bank tabs put huge bags in there and buy ALOT of runecloth fill your Guild bank, your personal bank , and your inventory.
If anyone has any ideas for diffrent items please send me a PM or post.