Was very surprised to find these on sale at Amazon - they're usually $25 - $28 a can and never on sale, so if they drop down around $10 or so, JUMP ON IT. Six #10 cans make a case, and a case pack tends to travel better. These come sixty or so loose-packed crackers to a can (as opposed to the seventy that come in the Saratoga Farms #10 cans), so expect some crumbs and some broken crackers - not a big deal for me, as the broken ones are still just as nutritious.
Also, be very clear that these are relatively neutral-flavored survival biscuits; think of them as slightly sweeter and thicker unsalted tops saltines. They're something to put your peanut butter or deviled ham or sardines on; they're something to help pad out a meal or accompany a soup or stew. And they're good plain, too - not super exciting hand-made-artisanal wowsie-wow, but a good example of the biscuit baker's art.
Do check the cans to make sure they're properly sealed - have had one can of another manufacturer's product with an obviously bad mechanical seal that was hidden by the plastic cover, and the time to discover that type of a problem is not when TEOTWAWKI is coming down around your ears.
It's also not a bad idea to tape a P-38 or P-51 (preferred - they're bigger and easier to operate) can opener under the lid of one can per case.
The manufacturer states that these have a shelf life of '... up to 30 years' given proper storage (<60F, cool dry location out of direct sunlight), but realistically, these are crackers packed in a sealed can with an oxygen absorber - keep 'em in the house and they should be good forever.
Some other reviewers point out that even on sale these are a tad expensive for everyday use, and I agree - but they're good to have put by for a rainy day, and properly stored your grandkid's grandkids will be able to enjoy them.