The Verso Prologue Cover for Amazon Kindle has changed my mind about using a cover. I have used this cover for nearly three months now.
What I do not traditionally like about using a cover with the kindle is that it usually doubles (or more) the weight and it does not fold back well so that it it is uncomfortable to hold one handed.
However, the Verso Prologue is amazingly light. It looks like it should be a fairly heavy leather cover. But it is not. The inside of the cover has to be some type of hard foam. It will flex slightly, but it withstands a good bit of abuse.

