As a lifelong socal resident, In-N-Out serves its purpose well as one of the best cheap burgers you can get. Though, Fatburger and The Habit are definitely better for not costing much more and as others have mentioned Five Guys is expensive as hell for a decent burger.
If I was going to spend that much for a burger I would go the best burger joint Slater's 50/50.
If I was going to spend that much for a burger I would go the best burger joint Slater's 50/50.