Oh hell yes. One question we are asked a lot is "what should I do first"?I'm sure that BR has faced the same time lag in his own garden. What he shows us are many techniques of reliable preservation and those, of course, are an adjunct to bartering.
My unequivocal answer now is "plant an orchard". It takes years to be fully productive, but when it is, it's the most food and the highest savings for the least amount of money!