I used to think the value of insuring a package through the post office was that it would influence the way the package was treated. A few years ago I often sent fertile eggs of fancy chickens through the post office and they only made it OK if we insured the packages. However, at some point the package treatment must've changed because eggs stopped surviving the trip no matter what we did or how well we packed them. We could keep them from breaking, but we could not keep the eggs from being damaged internally. For sure the post office will take your money and say the package is insured. However, I'm afraid any attempt at claiming on the insurance would be futile. I don't insure my bow shipments.
George