It is against your interest for Amazon to have a monopoly, and DRM is helping give them a monopoly. That's the thrust of the argument.
I really wanted to buy an ebook reader when I last visited the States. As soon as I realized that if I buy anything that isn't a Kindle means I can't access all the books I've already bought from Amazon, I knew I'd have to buy a Kindle. This is a bad situation for a consumer, since I'm locked in to a specific platform. Right now it's fine for me, since the Kindle also happens to be the cheapest offering. But fast-forward 5 years, and if there's no longer competition, Amazon no longer has to make the price affordable for me.
I really wanted to buy an ebook reader when I last visited the States. As soon as I realized that if I buy anything that isn't a Kindle means I can't access all the books I've already bought from Amazon, I knew I'd have to buy a Kindle. This is a bad situation for a consumer, since I'm locked in to a specific platform. Right now it's fine for me, since the Kindle also happens to be the cheapest offering. But fast-forward 5 years, and if there's no longer competition, Amazon no longer has to make the price affordable for me.