I just keep thinking of reasons why I need BOTH systems in my life. iOS and OS X are both amazing operating systems, but neither can do everything I need. For me, it's not an either/or situation. I tried to go about a month without an iPad and just use my rMBP and iPhone 6, and I hated it.
--If I don't have an iPad, I don't have a comfortable way to read or watch TV/movies in bed.
--If I don't have a Mac, I don't have a good way to record high quality audio on my double ended podcast.
--If I don't have an iPad, I don't that "in between" device that's great for airplane and train seats.
--If I don't have a Mac, I don't have an easy way of pulling up backup files from my AirPort connected hard drive.
--If I don't have an iPad, I have to bring my rMBP in ANY situation where I need a screen larger than my iPhone.
--If I don't have a Mac, I have nothing to hook up to my two huge monitors when I need a huge space to work with.
The list goes on and on and on. The more I think about it, the more I realize I need both. A month after selling my iPad, I was on eBay buying another one. I just can't go without it. I hated not having one. But I think that people jumping blindly into the iPad Pro and getting rid of their Mac are in for a rude awakening. There are a lot of things the iPad Pro can't do, and as I've had more and more time to think about how the iPad Pro was presented at the keynote, I've come up with more and more reasons why iOS just simply isn't ready to fully replace my Mac yet.