I bought a book on Amazon. I don't have Prime, so it took most of a week before the third party seller even shipped it. It never arrived, and the order status

I bought a book on Amazon. I don't have Prime, so it took most of a week before the third party seller even shipped it. It never arrived, and the order status only said "left shipper facility". After staying in this limbo for several days past the arrival date, I was credited with a refund. I bought the book again, this time fulfilling through Amazon. They quoted an arrival date of a week in the future. When that day arrived, the package had not arrived and it turned out that the date was changed to the shipping date. I still had to wait the better part of the week for the book to actually arrive. I did a search and found that I could have bought the book directly from the author (self-published), and would have arrived in three or four days. While waiting for the book to arrive the second time, I decided I had another book I wanted to read. I had it loaded up on Amazon... then checked B&N, who had the book in stock. I cancelled the Amazon order, and drove 10 minutes to buy the second book. So much for the convenience of Amazon...