First of all the Cummins is a great engine. IMHO the best diesel you can get in an HD truck. That said, I have to ask why anybody gets the diesel in a 3/4 ton truck. You just lose way too much payload and can not actually use the capability of the diesel. If I needed the diesel, and let's be clear most who buy it don.t actually NEED it, I would get a 3500. I have the 6.4 Hemi in my 2500 MegaCab with 4.10 rear end. It tows my almost 9000 pound 30' Airstream with zero problems. I have NEVER lacked for power! The added cost of the Cummings (around 10k) just can not be justified. Then you consider the cost of DEF and all the regen issues (very expensive). Now, if you need to tow heavy and often then yes the Cummins is the way to go. But too often a guy will go with the diesel because thats what the dealer has on his lot. Or his buddies tell him it's not a real truck unless it has a diesel. Now I would say it's your money and you should buy what you want. Just be aware of what you actual options are. Plus, with the cost of these trucks, why settle for what the dealer has? Order it and get EXACTLY what you want. Thats what I did and I am so happy I did that. Also, the 2500 with the Hemi and air suspension makes for a great ride, especially for a daily driver. And the 4.10 rear end really makes it pop off the line. Good luck with whichever way you go.