I'm not a huge gear-head. Automobiles are, to me, primarily about getting me where I want to be with all the stuff I want to have when I get there. Some folks are more into cars and trucks than I will ever be.
You have a 2014 Extreme Guy Toy to play with, and you have a 2015 Do Everything You Need truck with another 100,000 miles or more left in it. Both are practically new (at least to my standards).
Gaining another space in the garage can be a good thing. Losing one car insurance premium can be a good thing. Other than those two things I can't see much gain in the deal. Before you know it the new Ram will be 3 years old (current age of your F150), probably have 50K or so on the odometer, and be worth about the same as, or less than, your two current vehicles.
Either way you decide I expect there will be some disappointment down the road.