I've never been on an expedition either, but I have done a lot of roadtrips/camping/hunting/fishing. Another thing I'd suggest to consider beyond what was said that ties to the what you plan to do/where you plan to go. Consider how comfortable you feel parking the truck somewhere and leaving it unattended for several hours while being a tourist or whatever. Not a happy trip if you can't even go for a short walk without feeling anxious that your 'expedition' bling or big new tires or winch are going to make your truck stand out as a target of theft. Some of this is avoidable, so keep it in mind as you plan what your ideal vehicle would look like.
very true x1,000,000