Anyone tried/had success resetting an item's value?

[Ualaa]

Yes.

Cannot find the census site I was looking at earlier.
It showed Cenarius-US as the 10th most populated realm.

Googling, Warcraft Realms and Warcraft Census are showing it as medium population, not high population.

Oh well..
Definitely on Cenarius.
And there are way more alliance than horde; horde AH auctioneer scan is 2 minutes, alliance AH auctioneer scan is 35 minutes.

[Shodokan]

Guilds Ranked: 207 Characters: 4,938 (active 85s)
Horde / Alliance: 0.32 / 1 Highest ranked guild is 603 world rank

I'd def say this is NOT in the top 10 in the world.

Also new recipes come out next patch (4.2) which truegold will be needed for which will make the price go up again.