回答“Upgrade or Buy a new MacBook?”I have the same machine and upgraded it with 16GB of RAM, 480 SSD and a new battery last year. It became a new machine. I like the glass screen with a black border and the feel of this MacBook Pro, didn't want to buy a new one, plus I also like having the DVD drive in it. The only issue I've started to have is the trackpad doesn't make the click sound every so often. To fix this I tried the bang on it hack, which seems to work only temporarily. At some point I'm going to have to open it up and see if it's just dirt, or the screw needs adjusting, or the battery is bulging. I'm hoping it's not the Newer Tech battery bulging already. The original battery never bulged.