Most trucks sold are 4x4 . Many people wh have 4x4 dont need them . Here we see them driving around on dry or wet pavement 95% of the time. However if you live in snow country,go sking or off road then 4x4 makes sense . My 2wd has never been stuck or towed in the 12 years i owned it. I still have the original lower ball joints,tierods, steering box sector shaft. Upper ball joints were replaced at 300,000k. You dont have to repair transfer case, front drive shaft another differential locking hubs,short life ball joints ,and all the rest of the extra steering components. Harder ride ,more tire wear,lower fuel mileage and the extra cost of the 4x4.
There is a better resale value in 4x4 because of the demand everyone places on them.
Love my 2wd and at 530,000kms with a 53 block, original vp-44 ,transmission,and differential its been a great truck.