I am pretty confident in saying that the way you see your wife and the way she sees herself is not the same. I agree with other posters though that say that staggering the surgeries might be for the best. I don't know everything about your situation, but having two people out of commission at the same time may not be the best for many reasons. In my situation we have three kids. I am 5'6'' and 270 and he is 6'2'' and around 430 and we are both just in the very initial stages. I haven't even met the doc yet.
Speaking of my husband, I just told him a little and his response was... "Because he sees his wife logically and she's psycho" I'm saying this not because he was calling YOUR wife a psycho but because of all of OUR conversations about how I see myself. I see Jabba the Hutt and he sees his hot wife and therefore I'm psycho. I honestly can't see his point of view many times even though I may be exaggerating a tiny bit in my view of myself.