As I am in the process of replacing a hard drive on a Macbook Pro, I begin to notice that there are MANY posts and experiences of individuals having to replace a dead hard drive at some time or another in their Macbooks. Is this typical? Should this be something I'm prepared to endure? Would it make more sense to buy my own hard drive in addition to a new MBP? It's ridiculous that I even have to worry about something like this on a new purchase but I'd like to be prepared.