Gnoll Hide Sack

About 3g 4s on Beta · Horde (7 hours ago) and 20s 0c on Beta · Horde (1 day ago), from player scans. A vendor pays 2s 12c, so the auction house pays 136× 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 1 brings about 2g 88s there, against 2s 12c at a vendor.