Is it better to buy a diesel Ram 2500 truck vs a gasoline vehicle?

If it's a Dodge better stay away from them. Gasoline engine are way cheaper to repair and cheaper fuel costs, plus you can get massive big blocks engines to deliver all kinds of power. Diesels are very expensive to repair, fuel costs are a lot higher, power is limited unless you do a lot of expensive mods then they break other stuff. Personally I vote for gasoline.