In 30 years I have only bought one 2wd pickup. All the others and the SUVs have all been 4WD. They are useful for many reasons as mentioned, but also slick boat ramps, backing trailers with low tongue weights uphill etc. Last summer I was going to pull my loaded car trailer into the back yard and chose the 2wd to move it. Guess what! Yep, you guessed it. Got it stuck and had to get the Excursion to pull it out. My point is that you never know when it will come in handy. Many situations over the years I've gotten out of with using 2wd only, but there have been just as many when I needed 4wd. I have sacrificed the 1 mpg difference all this time by buying 4x4s. You will use them more than you think. Plus, as pointed out, they are easier to sell.