Buy what you please from whomever you please. My 327 + sales have all been satisfactory and I've never received a negative. We agree to disagree. I understand a buyer's perspective that all they are required to do is pay for the item. That is a given ........ indeed they are, and from a seller's experience I can say that they don't always do so. AFAIC a deal is a deal when it is consumated. Both parties having fulfilled their part of what ebay calls a contract. From my perspective the deal isn't consumated until both parties agree that the contract was fulfilled on both ends.
BTW, I recently paid for an item that cost $50.00 USD to ship. It was not as described. I notified the seller, who allowed returns, buyer pays all shipping, and said I expected a full refund including return shipping. Paypal will stick with the buyer on the intitial shipping but not on the return. The seller refunded the full amount + the $50 return shipping. I left them a positive feedback. The transaction was complete.