Only if you sign up by November, and "1.75% per swipe until January 1, 2016". It's 2.5% after that. I guess you could switch back, but by that time Amazon could have already used your data against you. No such thing as a free lunch!
For the fresh, barista-brewed cup, you're almost certainly correct. But what about the bag of beans that someone buys along with their coffee? The coffee mug? Hell, go into a Starbucks sometime and look at any item you can buy that you don't have to ask for from someone behind the counter...all of that is what Amazon does better and cheaper (though not friendlier) than any small business can compete with.
