Thank Guys,
I see two advantages to a MDT, but there are certainly cons also. The MDT is heavier than an LDT and will control the trailer better. The MDT is smaller and can be used as a run around vehicle after arriving at the destination. My ideal HDT would haul a Jeep. That truck is getting long and maneuverability would be bad in some RV parks we have stayed in. You see a few MDT's with big block engines that have the same power/torque as an HDT. But they are hard to find. I am still studying the options. I like the idea of the MDT, but the price is certainly a draw back. Having no power advantage over a LDT is certainly a draw back.