I guess it would come down to how much you actually tow/haul, and if the premium of the Ecodiesel is worth it. In my quest for a truck I looked at the ED briefly, but when I factored in the cost of oil changes, fuel, DEF, etc; the savings just wasn't there, which is why I picked the 3.6. I can haul a load of lumber from HD and pull a trailer with lawn equipment and get great gas mileage while doing it. They great thing about the enitre RAM lineup is all of the engine choices are great, you just have to pick what suits you best.
It's comical that people list DEF cost as a barrier of entry for a diesel. It cost me around $18-20 every 9,000-10,000 miles to fill up my DEF tank. If someone can't afford that then they should be looking at their life choices and not a diesel vs gas truck.
Also, my oil changes cost $75-90 depending on current oil prices. Again, not something to be concerned with.
You also have to remember that buying a diesel is going to require you to deal with more oil changes, fuel filter changes and the regen process.
Oil Change interval is 10,000 miles. Isn't that the same as the gas?
Fuel filter change is every 30,000 miles and costs $25.00
Regen process is automatic and you don't even notice it is occurring unless the DPF gets too full which will then display an EVIC notification. In 50,000 miles I have seen it once....
To the OP: I have a 55 mile drive to work and I average 25-28MPG in my ED with 3.92 gears. If you are someone that will maintain your vehicle then it does not matter if you get a gas or diesel as both will last a long time with an owner that takes care of it.
Mechanical failures happen with anything so all you can really do is stay on top of your maintenance and do your research. Also keep in mind that the vast majority of people that you read about complaining about the ED's are the ones that are having problems. The thousands of others that are not having any problems are just going about their day without an issue.