When I started looking at AT4s, I seem to remember the 3500s having less options available or being more "utility" vs 2500s. I was interested in higher towing, but like creature comforts, so I was originally building a 2500 with max trailering package. Now it's looking like they have similar trim levels. So my question is, what's the difference between a 3500 and a 2500 w/ Max Trailering Package?