One good thing:  this will push folks to seek out other vendors with better availability and prices.  True, Amazon is convenient as a one-stop shopping experience, but it's far from being the cheapest place to find books, computers or electronic goods, cameras, expensive knives or what-have-you.  It really boils down to engaging the competition and smart shopping.

As for myself, I've steadily weaned off Amazon, especially in the last three years.  Ebay for one, is not a bad alternative depending on what you're looking for and if you can keep your brain engaged.