Freeze dried food storage is a wonder of modern technology, no doubt about it.
It's a happy irony that technology is being used to prepare meals for people who are going camping to get away from the city that same modern technology created -- or to eat after that same modern technology and its civilization collapses.
If you're concerned about that the world's economy, the world's food production and supply system, a religious or spiritual transformation of the planet, a ecological collapse, climate change or our entire modern civilization falling apart for a long period of new dark ages (or until some Strong Man pulls things together) - then you should consider that freeze dried food storage is only something of a short term solution.
Freeze drying is a high tech process. If this current world order doesn't survive and we must adopt a low tech lifestyle, then we can't expect to live on freeze dried food for the rest of our lives.
Storing food from Mountain House, Oregon Freeze Dry, Alpine Aire Foods, Alfa Supply, Harvest Foodworks, Rainy Day Foods, Food Insurance, Richmoor, or other such companies can get you through a disaster in the short term, but you can't stockpile as much as you'll need for decades to come.
Of course, many people stock up on freeze dried foods simply to take them along to the outdoors: camping, biking, hiking, canoeing, white water rafting, mountain climbing, floating, driving cross country in RVs, and going on safaris.
On the other hand, it's certainly a good idea to have -- at the very minimum -- a 72 hour kit for every single individual in your family stocked away at home. And even better to also have them as well at your place of work and in the trunks of your cars.
But that's only a minimum. The reason the government recommends 72 hour kits is because it assumes that most disasters go away, or help arrives, within three days.

But what if that assumption proves erroneous? Even simple disasters can last longer. Heavy blizzards can block roads for longer than that.
But what if the catastrophe is much more widespread? Widespread civil unrest? Terrorists setting off nuclear bombs? A foreign enemy setting off a nuclear weapon above the country to destroy our electronic infrastructure with an overwhelming electromagnetic pulse (EMP)? A sudden ecological collapse or climate change? An influenza pandemic? An energy crisis triggered by a war between Iran and Isreal? Our food supplies disrupted by local problems such as a political or ecological crisis - or even workers refusing to load food for the United States while their own families are starving?
We have no guarantee that these situations will never happen.
Heck, the problem can be more personal. During this recession, some unemployed people have eaten freeze dried foods they bought and stored when they still had a job.
Therefore, freeze dried food storage is a smart idea in these uncertain times.
Next: Freeze Dried Food Storage -- freeze dried food is easy to store.