I side with the idea that the game dynamics have changed considerably against diesel. I have been solidly diesel for a long time, but I just got a new Silverado last spring with a gas engine, because the cost/benefit just wasn't there for getting a diesel pickup. At least for me.
My semi, I did what I wish was available for those with pickups. I ordered a 2013 semi truck with no engine, and dropped in a factory rebuilt pre-emission engine in it. None of the emission stuff headaches, more efficient, and all legal. Since that is not an option with a new pickup, it is going to have to really work out in the numbers before I consider diesel again. I don't use the pickup for business, so just camping jaunts and pulling a horse trailer once a month is not enough to get me to go diesel. The largest gasser will do just fine. Heck, I can supercharge a gasser and get darn close to what a Dmax will do and do it a lot cheaper. After all, once you force feed air to the engine on both gas and diesel, the disparities are not as great. Obviously, engine for engine, the diesel should pull off a little better mpg and hit it's peak torque curve lower in the RPM band.