This is how some sellers are now in the habit of both undercutting the EBAY cost structure as well as ripping off unsuspecting buyers.
I compared prices of items to find what seemed to be a good deal. The price was low $21, (buy it now) the postage was high $ 23 . The postage said insurance was required. I thought that if insurance was required then that explains the reason for high postage cost. However AFTER I BOUGHT THE ITEM an additional $10 cost was added for insurance. Postage $33 - This is not reasonable