I had a similar truck story, though mine is less than 1/3 as long.
In July 1999, I was still in school and needed basic transportation. My only requirement was AC (I'd never owned a vehicle with AC before, even when I lived in North Carolina for 6 years, and I figured at the age of 37, I'd earned it.)
I ended up buying a brand new Ford Ranger pickup. Extended cab, 3.0l V6, 5 speed transmission, 2WD.
One of the great things about a 2wd truck is that they're stone-axe simple. They're reliable because there's just not a lot of things on them that can break. No power windows, door locks, no auto tranny, no transfer case. Just engine-transmission-rear axle.
I drove that truck all over Wyoming, Idaho, Montana, Utah, even down into Arizona and New Mexico, in addition to Colorado. 93,000 miles in less than 4 years and not a lick of trouble the whole time.
It was actually one of the best "road trip" vehicles I've ever owned.
Even though I like my 4runner, there's a lot of times when I miss having a simple, basic truck. I've even thought about getting a 2wd pickup next year when my office moves out to the 'burbs and I have to start commuting to work. Save gas and also save wear-and-tear on the 4runner.
I'd also love to take a solo cross-country trip in a little truck like that. Put a decent stereo in it, put a simple sleeping platform in the back. "Stealth camp" in city parks or Wal Mart parking lots and you'd never need a motel except for the occasional shower. Get one with a 4 cyl/5 speed combo and it will get you nearly 30mpg if you drive it gently.
You could cover a lot of ground in one of those!