insurance is a scam, especially with USPS. You can't just say "this package is worth $10k to me". They will let you buy $10k worth of insurance, but if you go make the claim, only then do they say "ok, you said it was worth $10k, now prove it". If you can't show a catalog, or a preponderance of evidence that the item was worth what you said, they simply won't pay.
insurance is a scam, especially with USPS. You can't just say "this package is worth $10k to me". They will let you buy $10k worth of insurance, but if you go make the claim, only then do they say "ok, you said it was worth $10k, now prove it". If you can't show a catalog, or a preponderance of evidence that the item was worth what you said, they simply won't pay.