Since a lap top can do everything both can do. If you just like to carry around toys and/or have some propensity to always have some electronic device with you then that is your thing and nothing wrong with that. Other wise 99% of the rest of the world can do just fine with one laptop. Okay, I admit I have three, and 9 desktops hooked into 7 moitors, but then I'm in the trade. Trust me, I never get the urge to do anything/not work related on a computer if I'm out of the office. In fact I don't know any developers (maybe those under 30 and/or working less than 60 hrs/wk) who do. Now that I thought of that, maybe the people who "always want to have a tablet with them" are more in the range of entry level end users to sub power users, or 99% of the rest of the world. Probably/almost certianly got the numbers wrong, but thinking the point is good.