> They still made the contract - and it was even their lawyers who wrote the contract and spend hours poring over it. If I order truck loads of landscaping material to be delivered to my house and I later learn that it wasn't such a great price, you better believe I'm now stuck with that material and the bill.

At first, I thought you were talking about the general social or implied contract between a retailer and consumer, in the general sense. But if you're talking about the explicitly written contract that the lawyers wrote, which is the Conditions of Use, then the allowance for pricing mistakes is right there in the "Pricing" section of the contract, including a description of what happens in such events:

https://www.amazon.com/gp/help/customer/display.html?ie=UTF8...

> With respect to items sold by Amazon, we cannot confirm the price of an item until you order. Despite our best efforts, a small number of the items in our catalog may be mispriced. If the correct price of an item sold by Amazon is higher than our stated price, we will, at our discretion, either contact you for instructions before shipping or cancel your order and notify you of such cancellation. Other merchants may follow different policies in the event of a mispriced item.