I don't think anyone has talked about weight. Typical F53 gasser max is 26000 lb gcvwr. Diesels can easily get to 60000 lbs loaded up.
So let's look at weight/torque. So 26000lbs/450ft-lbs=57.77lbs of motor home mover per ft lb of torque.
A diesel might be 1250 ft lbs of torque or more. So 60000/1250 = 48 lbs of class a diesel pusher moved per ft lb of torque. Take my class c is 19000/420=45
Each can do his own Coach. It would be interesting to see everyone's numbers.
MrUsa I generally agree with your statement, one just has to have the wallet to enjoy that nice ride and amenities and unless we can get Obama to subsidize our lifestyle ,cost is a factor to most of us.