Hi everyone, I'm a college student and I'm considering to buy the new macbook air as my main computer. I've heard that a lot people criticize the macbook air for its performance and some of its features. The only things I will use/do on my laptop are: words, powerpoint, excel, STATA, picasa, skype, facebook and to listen to music on grooveshark. So I would consider myself to be a 'light' user. I also travel a lot, so the weight of my laptop is important to me. It's however not the main reason why I would want to buy a laptop. I want a durable laptop that is going to last for at least 3 years. I've never had a mac before. Do you think the macbook air is suitable for me? And if I buy one, is it worth it to get a 4GB memory upgrade? Thank you!