The thing about apocalyptic preparations are it is all scope dependent. If it is local than portable valueables and GTFO as an emmigrant able to pay their way i

The thing about apocalyptic preparations are it is all scope dependent. If it is local than portable valueables and GTFO as an emmigrant able to pay their way is better than five lifetimes of canned goods. And even then the collapsed area will either reestablish a regeime of some sort or be colonized by intact neighbors. If it is world wide collapse than productive skills may be the best - since even if you have guns you may be outgunned but if you can supply food any remotely smart bandit or warlord would prefer the reliable food stream of a living serf under their protection than just a storehouse's worth. Of course these are all very long odds and preventing a collapse is likely a far better use of resources.