Neither auctions or BIN are a silver bullet for a seller. Auctions are best suited to items that are unique or have a wide range in value. I have had auctions where what I though the item was worth and set the starting price at sell for considerably more than that. The down side to auctions is a buyer may be bidding on several auctions for the same item and will ultimately purchase and pay for the one that has the lowest price when the auction completes and retract the bids on the others.
You will never get anymore than your asking price for a BIN item, unless it's some type of scam attempt but rather than retracting the bids the buyer either requests the cancelation of the sale or simply either refuses the shipment when it arrives or opens a NAD case in which case the seller is stuck with the return shipping.
BIN is fine for commodity items but because a number of changes have leveled the ecommerce playing field and competition across platforms has increased I have found when I am looking for something I need eBay is often not the bargain site it once was and I can find it elsewhere for a better price, which often includes at a B&M store.
The thing I like most about auctions is how it fits into my other activities. All my auctions end on the same day, Sunday, and generally most buyers pay before the end of the day which allows me to pack and ship everything on Monday and make one trip to the post office. With BIN it is hard to say what day the item may sell on and how many days I would have to juggle other activities around to handle individual shipments.
