This is my third mac within three years. I first got the black macbook to see if switching to mac would be for me. I was hooked after using it for about six months. I decided to upgrade to the 15" MBP late 2007 because i needed a bigger screen. I would have kept that model, but my wife started to us it as much as me. I asked her if she wanted one. She told me to get the new one because she didn't like the unibody's missing tracpad button.........SCORE FOR ME>>>>>>>>>>>>>> Of corse I got it right away.... But to answer your question, yes I will keep mine for the next three years.