Just bought up to CP (was Platinum), as belated Christmas gift to self.
Not that there's a ton of difference between Plat and CP, but seemed the safest thing to do coming into merger, and certs are nice since I likely have more Europe in my 2014 than previously, so yay more upgrades on that.
Also, obviously, twirling my moustache and cackling about all the undeserved upgrades I'll steal from AA fliers.