I don't know what the weight limit is on my Harley, but I know some of those fat asses are definitely exceeding it. I get over, I'm only 170-180lbs and my OL is 100lbs, so I couldn't hit the weight limit on a 250 Honda Rebel with a passenger
Yes, Harleys are more expensive that Ducatis and Aprilias, but not by much the last time I looked. Do they hold value like the old domestics? I don't really know shit about Italian bikes.
Oh, and think about it, what if you were 300lbs and your wife was 250lbs? Wouldn't you do anything, including trying to be a bad ass biker, to rekindle some kind of sexual attraction with eachother? I mean, what do you really have left to lose at that point?