Like most above posters have said, get what fits your needs. I purchased a new Macbook Pro 13" about five weeks ago and I think I have turned on my iPad maybe a dozen times since. I haven't charged my iPad in more than a week and it still has 67% battery left. I still think the iPad is neat, but I guess what I really wanted was a portable computer, and the 13" Macbook fits that need and more. As a side benefit, it will also serve nicely as a portable space heater in the winter 
