My answer is, 'we eat it.'
I don't preserve food just to hoard and never use; we eat and rotate the food I preserve.
Most people go to the grocery store and shop for their groceries; I go to my pantry and shop from what I have on hand.
I keep my pantry replenished by growing as much of our own food as possible and by shopping sales and loss leaders.
Occasionally, we'll pay full price for food items but it's not very often. This saves us so much financially, not to mention that it's better for us!
A Working Pantry