I purchased the extended warranty because it is pricey and the warranty gives me accident coverage. If I drop it and break it or my boyfriend sits on it, or any number of other things, it is covered. As for the replaceable battery, the only time this would be an issue is if yours dies. It does happen but not very often so why let that guide you? Most electronics have small issues on them but the issue does not occur all that often to totally disregard the item