I'm in the same boat as MangroveHunter, having just bought a 16-35 II.
I'm going to enjoy what I have, and it also doubles as a standardish-zoom on my 7D for now.
When I've moved to a two-5D setup (swapping the 7D for a 5D3), I'll probably swap to the 14-24 if it's not astronomically-priced.