For the first time in years I am not sure if I will go diesel again. The new power ratings for HP and TQ of the gas engines are more than my first diesel truck which did fine. We go down the road about 21k combined truck, camper, jeep. That's well within the capabilities of a strong gas engine. All but the steepest grades should be at the limit no problem.
Fuel economy on my new truck isn't great, about 10 mpg with the camper and diesel is often more expensive per gallon. All the new emissions and added power really dropped the fuel economy. At least that's what I have observed compared to our 2004 Ram CTD. Oil changes are more expensive. DEF adds costs. 2 fuel filters at regular intervals. Adding in a lower initial price of purchase and gas starts to make serious financial sense for a number of reasons.
We are thinking of a new C&C truck in 2020. Not sure what way we will go at this point. One thing I would seriously miss is the diesel exhaust brake.