I have a 13" MacBook Pro Retina w/ 256GB ssd, I was thinking of selling and getting an iPad Air/ Mini Retina + Cellular. Would it be worth it? Or should I just stick with my computer? I mostly use YouTube, Stream Music, Internet, FaceBook, and sites with Flash. I really never use the "Computer side" of it. I kind want the iPad for it portability and being able to use it most places I go with the cellular feature.