I just can't justify spending the amount of money it costs for essentially a shiny linux box. I spend the vast amount of my time in iTerm/browser/IDE anyway, and having dumped iPhones a few years ago I no longer need the single ecosystem. (I do need to look into running OSX as a VM for the /very/ occasional use of XCode)
My 10 year old 13" Macbook is still chugging along, but it's basically becoming useless for development work nowadays, it just gets far too hot now trying to compile things - that will most likely be replaced with a Dell XPS 13 (When I can afford to)
My 8 year old iMac was on it's last legs a couple of months ago, so I spent ~£800 on building a new PC that should see me through another 10+ years of use easily. Running Mint on it, and it's handling everything I need and more.
I was /very/ tempted to just jump over to Windows 10, but the licence cost was 1/4 the cost of the build, and that just didn't sit right. Shame, as I've been setting them up for as a trial for rolling out 'proper' desktop/AD setup at work and it works just great - with the linux subsystem as well.