I recently bought a used mid-2007 13" Black MacBook on Craigslist for my daughter (Paid $400 incl the new battery I bought). Works fine and all and probably good enough for her needs. 2.16GHz/2GB ram/80gb HDD. New non-Apple battery as well. Good condition. I put this MacBook as well as my mid-2010 13" 2.4 MacBook Pro on CL to see how they'd fare and whichever doesn't sell I'll keep for my daughter (I just bought a 2011 13" i5 MBP for myself which is why the 2010 MBP is listed as well). I have an offer from a potential buyer for $600 for the BlackBook. The MBP has only fetched as high as $900. What I am trying to decide is...while the BlackBook really is fine for my daughter (for now), is it worth the extra $300 investment (since that's the offer difference) for: + Newer laptop (I bought it brand new from Best Buy in November) + Still having 7 months warranty left vs zero + 4 GB ram instead of 2 GB ram + Better video + Slightly faster processor + Better display + Lighter and thinner + Slightly better battery + Intertial touchpad (instead of touchpad w/button) + SD slot + Mint condition vs good condition Am I missing any other key differences? Worth the extra $300 out of my pocket? Thanks!