The Downside of Getting the Upgrade

I always figured it was binary - ie pretty much everyone survives a plane crash or they don't. Apparently not (Popular Mechanics, h/t Altgate):

The rear cabin (seats located behind the trailing edge of the wing) had the highest average survival rate at 69 percent. The overwing section had a 56 percent survival rate, as did the coach section ahead of the wing. First/business-class sections (or in all-coach planes, the front 15 percent) had an average survival rate of just 49 percent.

Given the choice though and the odds, I'd still take the upgrade :).