If your 2014 travel will involve little choice but AC, then it is worth it. Otherwise, I’d spend the $ that you’d spend on MR to get an Amex The Platinum card instead.

The Amex Plat comes with One World Sapphire status. If you are able to switch most of your travel to One World, it’s much better than having AC E50K when you have the Million Miler E50K, the E75K and SE all ahead of you and being looked down by AC staff as an insignificant/unimportant low tier member.

With the co-pay on International upgrade in 2014, there will likely be more upgrade requests on North American flights and E50K is at the bottom of the pile unless you’re buying Latitude.