I just upgraded my late-2009 white Macbook from 2GB RAM to 4GB. I noticed better performance right away. I don't need a new HD yet but the YouTube videos of regular HD vs SSD boot times is really tempting me. Maybe some day after prices come down... I tend to keep my electronics stuff as long as possible (years...). Assuming I still have this laptop a few years from now what may need to be replaced? HD to SSD? Do Macbook users eventually replace the battery? What else is likely to break/wear down? I'd like to use my Macbook as long as it works fine and the costs/upgrades are reasonable. I'm not one to dump a laptop simply because a better one is released. Thanks.