I only need my Macbook Air anymore for literally one thing: a piece of conference call software I'm required to use for work that only runs on Flash capable devices. Other than that, a full blown Mac or PC is not necessary in my life anymore, and since my Mac is supplied to me by my employer, I definitely don't need to own a personal one. If I were to (god forbid) lose this job and have my Mac taken away, I would still not buy one of my own. Macs and PCs, to me, are the past. I do all my work and play on the iPad Pro now.
And just in anticipation of people telling me that I'm probably not doing any "real work" on my iPad Pro, I use it for art, podcast recording/syncing/editing/publishing, recording and creating music, note taking, document creation, document markup, photo editing, and a bunch of other stuff I'm probably not thinking of. I am far beyond a "casual consumption" type of user, and I still would not miss my Mac for one second if it were gone.