Yes the wider version allows other benefits as well as a fatter rear hull ( seems where most big tri's have gone over to ) in particular if you offset the dagger board by about 150mm you can get a fitted loo in the larger space Well on paper it looks like you can, practically ???? ). Ian is openly questioning whether the wider boats are slower as first thought. There was quite a discussion on this on SA a few months back

I've also thought that the Amas may just have not been big enough but with the extra width and leverage it gets back to being about right. Pity they were not slightly more foward of the main hull than they are now, but hey that was the design of the time and it has been a very successful design.

There are loads of benefits of the 82 in my mind, principally its small enough to fit in most marinas corner spaces. At 32 feet you are suddenly a big boat and in a crowded marina the shoreman will just say we have no berths. Also here in Europe its better to have a much cheaper boat build wise and spend the money saved on taking the wife to nice hotels along the way, afew nights on board followed by a nice night in a hotel to spruce up.