Common · Consumable · Explosives
Same as in Classic Era.
About 10s 0c on Beta · Alliance (19 minutes ago), 29s 95c on Beta · Horde (6 hours ago), and 32s 0c on Beta · Horde (24 hours ago), from player scans. A vendor pays 5s 0c, so the auction house pays 1.9× more.
No. It is in Classic Era too, with the same item level, vendor price and stack size.
Sell it on the auction house. After the 5% cut a stack of 10 brings about 95s 0c there, against 50s 0c at a vendor.
There's no auction house to price until then.
Beta prices — not launch pricesNormal, PvP, and RP open Nov 4