'13 got a little heavier, but the '12 had been criticized with a "willowy" RD hanger that needed straightening multiple times in a test period.
Lots of 29er carbon HTs on sale for $800-1200 recently, including the '12 Air9 RDO for $1175 at Big Kahuna. Think Hammerhead was clearing out the Orbea Alma and Intense Hard Eddie over the holidays. Wonder how saturated the market can get with all the "me too" carbon 29er HT frames. No rush.