I ALWAYS quote a sell price that includes shipping. Of course I raise the 'in my mind sell price' to cover what I hope the shipping will be. And then I eat the difference. I sent a pneumatic pump motor for a shotgun reloader (Spolar) to a guy once. I quoted what it cost to send it to me. I did not know the original shippers had a serious 'account discount' for volume shipping, so I ate about $65.00 on that one. But as stated....a deal is a deal and it's a contract to me.