You need to do that once no matter who is buying it, or when, or how many people back out. It's done, other than maybe occasionally ensuring it's charged, leave it in pristine state.Buyer backed out. This is why I hate selling stuff online. Too many time wasters. You're going to make me format it, sanitize it, clean it all up nicely for you, pack it up nicely and bring it with me....then you back out. What a joke. That right there deserves a bad rating.