Knowing that I eventually wanted to get a camper, I decided that I'd rather have more truck with fewer options than a fully loaded half-ton. So last year, I went with a lightly optioned 2013 Ram 2500 4x4 Tradesman crew cab long bed with the Cummins for a little over $40k out the door (sticker was about $48k). I actually paid less than my buddy who bought a fully loaded Ram 1500 Laramie/Hemi.
I get better fuel mileage (21-22mpg) than him (14-15mpg)by a good bit when empty, though with the difference in cost of diesel versus gas, it is pretty close...I'm still ahead though. And when towing my dad's 35ft Jayco Eagle, I get around 12mpg highway...he doesn't do much better than that empty. I had a 2004 Ram 1500 with the small 4.7 or whatever that thing was. It was a dog and only got about 11mpg empty, which was the main thing that convinced me to go diesel next time around.
As a daily driver, it isn't bad. I drive 50+ miles round trip to work, mostly highway. The only drawback is the long bed makes it tough to park in downtown Pittsburgh in some places. There are times I wish I went with the short bed. But otherwise, it isn't bad. And they redesigned the frame and rear suspension on the newer ones. So they supposedly ride even better, though I haven't driven one yet. For me and how I use it, this truck is way overkill 99% of the time. But it sure is nice to have for that other 1% of the time. :)