Pickups being cheap was over 20-30 years ago and even then unless you were getting a tiny Japanese one you were dropping $5-10k more than for a sedan.

Getting a big freezer to store ya entertainment meat is not a need-to-have food preservation system, it's a luxury that depends on fairly consistent electricity. Dry goods are what you need if you want security. To tie it together, this would apply to people that make jerky and smoked foods, i.e. what indigenous people did and still often do with meat. But very, very few people are in it for that, they're in it for the lifestyle their grandpappy taught them and so they can feel tough and cool and for some of them, just go camping without anyone calling them gay. It's inherited from a colonizer perspective on the "Wild West" that is even itself fairly synthetic and surprisingly recent and, of course, is self-applied by (nearly always white) people in Eastern New York same as someone in Montana same as someone in West Virginia.