I own a Macbook air 11" 2015 (no upgrades just standard) With iOS 11 pretty much making an iPad closer than ever to a laptop (I'd say it is at this point). Is it worth it? My air was never my workhorse (I have 2 iMacs (2016 and a 2010 iMac), but I used my air for work and big presentations, is anyone else in the same boat? Can an iPad with iOS 11 really now be a laptop replacement? Could I get 3-5 years out of this iPad pro?