I see a lot of discussions comparing the operational cost of the diesel vs gas but nothing addressing the 4x2 vs the 4x4 or 2WD vs AWD. I purchased the Limited 2WD with tow and block heater because it gave everything I needed plus for less money. Now driving to and from work with no highway just secondary roads I avg on the plus side of 30 mpg. While towing my 4000 lb trailer if I keep it at 55 I get 21.6 at 58 I get 20. I don't pull faster than 60. There is the resale argument...... but I don't resell. And I don't off road.