As others have said, ham is not the best option in certain situations. HF can make long distance contacts from remote locations, but I don't think that will be reliable as satellite phones given the variable nature of propagation. If you believe the zombie apocalypse is coming, the infrastructure-less nature of HF communications may appeal to you for emergency communications, and it may even pay off in large regional emergencies where other communications channels may get overwhelmed. But when most expedition types think of emergency communications, they are thinking of situations where the world is busines as usual, but I'm in the middle of nowhere and I've rolled my truck 200 miles from anything. In those cases I'd probably trust a sat phone more than a HF rig.
However multi party communication over a dozen miles (or 50+ miles if there is a mountain top repeater) is where it really shines. If you are offroad with a few others and you need an easy way to coordinate and stay in contact, VHF/UHF ham is the best option. You could also look at FRS, GMRS, MURS, or CB for this purpose, but I think 2m or 70cm ham works better for a lot of reasons (assuming everyone in your group is licensed).
You also have local repeaters where, if traveling you are likely to find locals that know the area better than you, and are generally pretty friendly and helpful.
Geof