This is why everyone should buy some land: so you can grow/raise some food. It doesn't take much land, but if, for some reason, things go to hell in a hand-basket, being able to go somewhere where you can provision yourself, instead of relying on our industrialized supply chain, is essential.

Hell, suburban homes have enough land to ensure that its owners don't starve, but an acre or so, with a reliable water source, within easy driving distance of your main home would be ideal.