I got a macbook pro 15" (late 2008 model) in 2009. Over the past few months, I have had problems with it. It freezes often and I have to restart it. I took it to the Apple Store. They wiped it clean and reinstalled the OS, but I still have the same freezing problem. So, it appears to be a hardware issue. Took it to the apple store for more analysis. I was told that it needs to be sent to depot for repair and would cost me a flat rate of $310. The battery needs to be replaced as well, which is extra. Also the optical drive is not reliable (fails to read/write DVDs sometimes), although I don't use it often. I am now wondering whether to invest in repair ($400+) or sell my macbook as is and get a new one? Any advice would be appreciated!