'Infinite' is relative. To me, it's having a few extra mil you won't miss, to casually toss at pet projects.
It's entirely possible that the AI's will be the ultimate survivors. That makes the ultimate bug-out location a nice quiet Sputnik keeping the geosats company. No room service, but the peasants won't be rioting at your door. And sunlight is food.
Okay, I jest. In fairness, some of the people cited are trying to enhance their personal skills, ensure mobility, and organize a temporary safe haven. Not entirely unreasonable, unless it involves flying to NZ as a prerequisite to everything else.