The most interesting thing I see with business folks using Macs, they are still running most windows oriented software because MS basically owns client side of Enterprise s/w. These programs do not run faster or cleaner on Macs vs PCs.
Now if you can live fully within an apple oriented world, with perhaps a cross over into Google land, than Macs deliver....At a premium price. But post Jobs era, PC and Android based systems are catching up. I've seen some experimental home made laptops sporting GPU arrays rather than a multivitamin CPU....Thing things clock at amazing speeds. It's predicted that sometime late 2017/early 2018 we'll see MS surfacebook2 and a Google 2in1 Chromebook. These devices are expected to bridge the Apple advantage at a reduced cost. I'll believe the latter when I see it. In the meantime, Apple better have more than a watch and TV up it's sleeve, lol.