There are a few basis suspension parts that are different going from 2500 to 3500 but that all there is. You have to decide if you need the extra payload, if you do then it's not much of a decision.
From my point of view the best TV is the one with the title in the glovebox. Looking at it that way I put a lot of thought into why am I spending on payload that I am not going to use......On the other hand if I am going to use the extra I am willing to pay for it.
No man has a good enough memory to be a successful liar. Abraham Lincoln
2016 36FBTS Pinnacle
2016 F350, 6.7, 4x4, DRW, long bed
B & W Companion 5th wheel Hitch