Probably a dumb question. But I have been using a 2010 MacBook (the white plastic one) for the last couple of weeks. This laptop really belongs to my daughter, but she bought herself a new one a couple months back and my old Mac died, so I borrowed this one from her. It seems to be running great and I'd like to give her something for it. Any idea what a fair price would be for a 2GB 2010 MacBook?