AmazonGigaOM’s Matthew Ingram has a thoughtful piece on the recent Apple decision, where he posits that publishers got themselves into their “versus Amazon” position not because of pricing, but because of their insistence on selling books with DRM.

What’s the connection? Well, DRM is a lock; we all agree on that. And who has the power whenever there is a lock? Whoever has the key! As soon as someone invests in one Kindle book, they are locked into that system forever (unless they are techy enough to know otherwise), and every book Amazon sells them only cements that monopoly.

DRM locks, as author Charlie Stross once wrote, “gave Amazon the stick it subsequently used to beat them.”

There’s more in the article. It’s definitely food for thought!

• Related: “How to Remove Amazon’s DRM from Any Kindle E-Book” (WonderHowTo)