Currently I have a fairly low-end mid-2010 Macbook Pro 13" with the initial 256GB HDD and 4GB RAM, running Mavericks. The battery health still shows as good--about 85% of original capacity. I'm not a heavy user or gamer. I mostly use the computer for writing, blogging, social media, iTunes, some light photo editing and the occasional use of Garageband for music collaboration or practice tracks with friends. This computer has been great for my needs, for the most part. Where I do get frustrated: first of all, it takes *forever* to start up (several minutes--I think close to three last time I timed it). I end up leaving it up and running on my desk most of the time just because I don't want to deal with the wait. Secondly, it is slow to open and switch between applications. Lots of beach balling, and the fan tends to kick in a lot. It also hiccups quite a bit on intensive websites like Facebook. Would upgrading to an SSD really give me enough of a performance boost to buy me a lot more time with this machine? Or am I better off selling to someone less particular (I have a family member who is interested in it, though in no particular rush) and getting something a little newer?