I'm just a student in high school and I'm looking for a MacBook but each one has something negative which stops me from buying it. The MacBook Air has that low-res screen and bad speakers, the MacBook Pro is not that portable and the new MacBook has no USB port. But each one has something good which is really useful, the MacBook Air has superior battery life, the MacBook Pro has the Retina display and the new MacBook has a Retina display with really good speakers (which would be really helpful as I watch lots of YouTube videos) I mainly do that as well as office work so which one should I buy? The MacBook seems too gimmicky, the MacBook Air has that low-res screen, and the MacBook Pro can be a pain to lug around?