I want to bring in a funny point here. Am I the only one who thinks iPad Air screen is too small (not talking about the quality of the screen, which is excellent, no doubt) for reading documents? I have tried it out in Apple Store; it seems like a toy screen to me. This is the single reason that I have not bought an iPad.
I consume passively for about half of my time and produce actively (run programs on a server via Terminal) the other half. So, if I had to read a document, I think Surface 3 is just the right size. Plus the stylus there is very good for annotations. And then I can work in the Terminal using the Keyboard accessory. Also, switch between programs via Alt-Tab, multiple side-by-side windows etc. Install iTunes to bring over my music collection.
So I am very very tempted to move from my 13" MacBook Air to Surface 3. Price is not really a consideration for me. So, what am I missing?