I select USPS Parcel as my shipping method and it keeps changing the price & selection on the Payment & Confirmation Pages to Priority. I know very well the Postal Service still offers parcel service and the rates are reasonable. In fact, they even have a book rate that is rather cheap if all you are sending in a given box/container is nothing but books.

While I like having my books fast, I don't care to pay a whole lot in shipping.

In fact, I'd rather buy them in brick and mortar stores and redeem an online coupon for the downloadable format (if I should buy the book & PDF combo).