My observations on this auction:
The seller's user name is telling 'holdemorfoldem'
Very sparse item description. Multiple pictures, so seller is covered if buyer finds flaw that is shown in the pictures, even if barley noticeable. Nothing is explicitly stated about item condition. It is the buyer responsible to 'see' and thoroughly review the pictures.
Does not accept returns.
Hence the shipping cost strategy. The seller receives the final auction cost: shipping and item cost. If the buyer is unhappy and opens an eBay case, the seller can state the items was as described, agree to refund the item cost only and let the buyer keep the item. Or, against the auction conditions, agree to accept a courtesy return. But, the buyer must pay return shipping and only receive the item cost and not the original shipping. Since a significant profit margin is built into the shipping cost, the seller wins.
BTW. This is where 'Free Shipping' can be a loser for the seller. If the buyer opens a case, you cannot separate the item cost from the shipping cost. So, you may get stuck refunding the entire amount, thus absorbing the shipping cost. 'Free Shipping' does help if you are anticipating selling multiples of the same item to a customer. Because the shipping is built into the price, you receive 100% shipping on each item and often get around the 'Combined Shipping" discussion.
When selling an item with a high shipping cost, I seldom offer 'Free Shipping' If returned due to buyer remorse, wrong item or "shoes are not comfortable", you have no choice but to issue 100% cost return and eat the shipping. Separating the shipping cost helps limit your cost exposure.