If it were me I would be doing the same and in fact I am though I only drive 35-40k per year. My Ram 3500 SRW longbed does its duty just fine whether it is in town empty or towing or out on highways and byways towing or empty. I may have been able to get by with a 2500 though towing our fifth we would have been very close if not a hair over on payload. The price difference between the 2500's and 3500's I had looked at was literally a few hundred dollars. I did not need a dually for the weight I pull so it wasn't part of the mix at the time I was looking. Have not looked back since.
