Lots of input on this, good for you. I'll throw in my .02. I've owned 6 pickups, only the first was 2 wheel drive. Now being 60 I'll tell you that back in the proverbial day, with the exception of a few Willys brand trucks, nobody had a 4x4 and they seemed "somehow" to be able to live and get places. Imagine that, no computer controlled AWD and no eaton air lockers etc... I wonder just how the old farmers, ranchers, loggers and construction people ever did it?
But since this is a different century, and nearly no one knows how to drive up a logging road without all our fancy gizmos, so yes, get a 4x4. Just use it to get unstuck, not to go farther in like a poster said above. Remember that many of the older trucks have open differentials so you really have one wheel drive up front and one wheel in back... That's where the gm G80 limited slip and whatever ford and dodge call theirs is nice. Real lockers (the old boys welded the read end) are troublesome on pavement...
If you can find the older truck with the solid front axle that's nice and try for no automatic hubs ( ya mean I have to go outside and turn them? Might get muddy...) as automatic hubs can and do fail, never heard or saw of the manual hub doing that.
Newer trucks and SUVs also sometimes are computer selected and you don't have a 4lo range. That's dumb. You may need the lower gearing. Some newer trucks and SUVs also won't let you select any form of traction assistance. It's all "computer controlled" and they simply brake the spinning wheel (traction control) instead of allowing the power to go to the different axles and sides. Again, not what the driver necessarily wants...
So go on the 4x4 truck forums and read up some. I've not owned anything newer than a 1994 pickup so I'm not of much use with today's technology other than what I read. Yet knowledge is power, right?