Shoot, for $30 I'm just gonna get one as a backup since it's cheaper than insurance
You do need an upgrade though. You'd probably do better to just preorder an SG3 while you still can (today's the last day) and then just use that when your current phone stops working. It's 200 bucks but it's 200 bucks well spent. OR just turn around and sell the SG3 for like 600 bucks on Ebay anyways.