of course a bigger truck is going to tow better and the fuel economy not towing is going to be worse the bigger you go.
An MDT is going to out tow a 3/4 ton or 1 ton all day.
But is it necessary? maybe to some and I guarantee there are 3/4 tons and 1 tons out there overloaded
Like has been said..it depends on the person behind the wheel only.
Every one might cringe at my setup and feel extremely nervous driving down the road...me?...
I love it. One hand on the wheel , relaxed and cruising. Am I blowing the doors off people?..NO...wouldn't go any faster if I could. But I travel down the interstate doing 65 without a problem...maybe 50 up the steep hills but oh well....no worries..there is always the top eventually.
Besides I love the sound of that Japanese V6 blasting out revs at 4000.
my 2 cents
One thing I am quite sure of....if there was a limit on tow vehicles and you needed a 3/4 ton or 1 ton to buy a 6000 lb and up trailer or these ones advertised as "1/2 ton towable" the RV industry would not
people would give it up.