My MacBook's (mid 2007) hard drive failed not to long ago (~3 months), so I sent it in for repair since it was still under apple care. I had Tiger installed on the hard drive that they replaced. When I received it back in the mail it had a fresh install of leopard on it. There was no charge to the credit card or anything. I found it a bit odd that would have installed a 130$ operating system on my computer for free. Do you think this is normal?