How far is too far?

Amazon has recently released a price comparison app for smartphone users that allow you to scan items to see if Amazon's price beats that of the store you're standing in. This is Amazon's way to allow you to browse a local bookstores shelves, take advantage of the knowledge and recommendations of booksellers, and then stiff them and your community.

But why would Amazon stop there? Now they are promoting this new app by paying it's users up to $15 on Saturday to not shop locally. As you can imagine this has upset a number of people (and rightfully so).

How far is too far, Amazon? What happens when you finish off Barnes & Noble, and more importantly  the remaining independent (book)stores? What happens when we are left with three choices: Walmart, Target and Amazon? What happens when every town and city is stripped of its character; its uniqueness?

Then what?