I have a '14 Ram Ecodiesel
I have a '14 Ram Ecodiesel and tow a big trailer on a long roadtrip once/mo. It's been terrific. There's some marketing pieces that neither Ram nor Ford has done very well.
Economics. Prospective buyers don't focus on the right things when considering the economics of a diesel. In DD mode, the diesel 1/2 ton mpg is not a big win. Diesel costs more then 87 octane, which most folks put in their truck, That negates the better mpg of the diesel in DD mode. But when towing, diesel engines get far better mpg then gas. This is because they are more efficient at the higher hp that towing requires. My EcoD gets 2x the mpg towing, as a gasser would. The EcoBoost gets particularly bad mpg towing because the engine management riches the mixture to keep the turbo cool.
So marketing depts should be putting towing mpg on the skyline.
Resale value. It costs a lot to get the diesel option in a 1/2 ton. People make the mistake of looking at $$ saved via better mpg and the numbers don't work out that well. But it's important to also take into account the higher resale value of the diesel engine. Thru it's whole life, my EcoD has had a KB value thousands of $$ higher than the Hemi version of the same truck.
Marketing dept's should be talking up resale value of diesel trucks.