Free advice is worth what you pay for it, the same with philosophy. So here goes:
Well Grasshopper, do you want to go "wheelin' " or on an "expedition." They are close, but not the same. If 4x4 is your goal, then you will probably be happier with a Jeep/Toyota/etc. and a tent. I would argue that "expedition" is another word for "tourism" with the following qualifications:
-- The trip is longer, weeks or months, rather than days.
-- The target is back woods, back roads, and, perhaps, overseas in countries will unpaved roads.
-- Mud/rocks/etc. are obstacles to be overcome, but not the purpose of the trip.
-- You want the vehicle to support your living with things like water, stove, toilet, sleeping space. This might range from a platform in the back of a covered pickup, to a roof top tent, to a full on camper or motorhome. But this is in direct contrast to simply carrying an pitching a tent.
Those of us who lean to the tourism side, favor the larger vehicles for the greater living comfort on an extended trip. Those who lean to the 4x4 side of the equation will favor the smaller, more modified vehicle and a tent.
Only you can decide, but there is no "wrong" answer.
Safe travels!