FYI: My wife and I got 2x75k Amex/Visa in September 2011. We got business Visas in April 2012. Earlier this year, we got the 50k Visa.
We got the 60k Executive card in November, and my wife's 60k have posted. I'm just a bit short of the spend, but I'm confident now that the 60k will hit.
FWIW.