They may be really capable, and durable, but they're designed to carry four troops around in a combat zone, where there's regular resupply. I think that it makes compromises to achieve this mission that make it less than stellar as a vehicle-dependent travel choice.
If you were treking through a dense woods, cutting your own paths, ok...yes...a hummer might not be the best choice.
Sorry, but "resupply" is never regular and I have lived out of one for 5 months with only weekly resupply. If you know how to pack they will hold a ton of stuff. The civilian version has even more room since it lacks all the commo, BFT, and IED defeating gear.
As some one who has driven/ridden/maintained/lived in/fought from them since 1996 in two different MOS's I would with out question take one anywhere in the world with out worry, or fear of not having enough room. What it lacks in maneuverability it makes up for in over engineering and durability. Plus the roof system is strong enough to literally hold a ton of gear. Then you always have the doors, sides, and read to hang gear off of.
Then why don't you have one?
And would you pack that way when making an overland trip with your family? Can you sleep in the back of one, stretched out?
My point isn't that they aren't capable, or well-engineered. They obviously are. But when you get down to the compromises people are interested in making, there are very few who select the compromises that go into that vehicle over the ones that went into a full size truck. Or, when you need the carrying capacity and off-road capability that they have, you're talking about competing against a medium-duty truck or Unimog.
And bashing down trees by putting the center of the bumper on it? That may be fun, but it's not a really effective way to get through a tight trail. (Not that I buy that argument about tight trails. This is about overland travel, not rock crawling up single-track.)
Look, if you want to say, "I really like Hummers. They go anywhere, and I really have a soft spot for them. Do you think it will work for an Expo vehicle?" The answer is absolutely yes. I'll probably commiserate with you about how much I miss my Series III 88, even though it was slow, had no range, loud, and I couldn't carry a yard of gravel in it. Or how I have drawings for an M35A2 expo camper, because the only way I can legally drive one in CA is as a camper, and I really freaking want one.
But if you ask (as was here), "Why don't we see more of them on Expo?" then I'm going to stand by my answer: most people aren't interested in making the compromises that were made in designing a military transportation vehicle. You among them.
Biggest H1 issue "logistics" in civilian world.
The drive train has cooling issues too like the t-case cooler failures.
The worst issue is that AM General installed 6.5 bad motors (cracking blocks) in many 2002 and back H1's. However, GM in May 1999 started installing the enhanced version of the 6.5 td in their Suburbans and vans until 2002 which is the best 6.5 in any civilian vehicles.
Why anyone would prefer to get 8 maybe 9 mpg from an H1 w/diesel when you can get 3+ times that w/Suburban w/diesel?
IMHO the H1 is not the best for expo or overland, "thumb down",
the H2 is an overpriced piece of crapola w/10 bolt rear but can be better with deep pocket owner, "thumb down",
the H3 is a good choice and I've seen them build right for expo/overland w/o deep pocket requirement. "thumb up"
those people that complain are the ones that cant even afford to own a spare tire ( with a CTIS in there ) from hummer h1