You just buy the extended warranty and be as careful as you can. I'm hard on electronics too. I tend to get lazy and want to set my kindle down without slipping it into its case, but I make myself take the few seconds to do it.
I'm no harder on my kindle than I am on eyeglasses. And my glasses cost a whole lot more than my kindle.
I'm no harder on my kindle than I am on eyeglasses. And my glasses cost a whole lot more than my kindle.