Common · Quest
Same as in Classic Era.
About 92c on Beta · Horde (5 hours ago), 92c on Beta · Alliance (1 day ago), and 92c on Beta · Horde (1 day ago), from player scans. A vendor pays 92c, so the auction house pays 1× more.
No. It is in Classic Era too, with the same item level, vendor price and stack size.
Sell it to a vendor. A stack of 5 brings 4s 60c there — more than the auction house nets after its 5% cut.
There's no auction house to price until then.
Beta prices — not launch pricesNormal, PvP, and RP open Nov 4