Crisis Seeds

I heard an advertisement on the radio today for "Crisis Seeds". According to the ad, they can be worth more than gold or silver and even have been worth more than gold or silver in this century. Although I'm not really sure when that was.

If you send away for a kit now, you will receive enough un-genetically enhanced, non-hybrid seeds to plant a "crisis garden" 1 acre in size. Sounds good right?

So where does the acre of land, good soil, water, etc come from to raise this crisis garden? How many people do you know that actually own an acre of soil that you could grow anything on? Now add to that the fact that you're planting these seeds after a "crisis" of some kind...

Really? Crisis seeds? Does anyone actually buy this kind of thing?