Having the options is the answer of my choice too ;)
I'm using MacOS (RetinaMBP) when on mobile working, as there weren't any comparable options of Win Laptops. I really love the huge trackpad and it's a pleasure to work with it on the go. For work I'm using 2 dual xeon machines, one as Workstation, second as rendernode (waiting for DR)
Both OS have their advantages for their use.
Sorry I've been away. I see that Macs are nice, although I find the OS a bit alien as I'm so used to Windows. I suppose I worry a bit that Maxon, corona, vray etc must have to spend a lot of extra time making sure everything works on both windows and Mac so there are two streams of development rather than one like Max. Certainly Apple seems to have taken a decisive decision to only have a single cpu machine as its top offering and even two gpu isn't much compared to the 3-4 most gpu rendering guys put in their workstations. I also can't see where they can go next with their line up as adding a second cpu on a double size dustbin would make the price astronomical.
So I imagine a lot of people like you guys are moving to PC workstations for the bigger stuff. I just wondering what the tipping point is for developers including Maxon for the convenience / those that just like Mac OS and MacBooks vs the time they need to put in to develop their software? Like I said our friends on Max don't have the luxury of OSX but perhaps that helps focus development.
In my opinion, this is due to Apple/Mac's origins. It's been Developed as an artist and graphic-designer OS and many people in this business trust in this. To be honest, mac is the more-plug'n'play OS, especially if you're not really into the techie side of Computers but still have higher demands due to the software you're using (and believe me this is true for a lot of designers, all Mac-fanboys, I've already met)
They feel less limited in their artistic workflow.
But IF you're comfortable with building your own hardware, installing your own OS, searching form the right driver versions etc. pp, you're propably seeing you're chance to do things better than apple's mac hardware ( I'm Talking of dustbins and imacs right now)
I truely see your question why devs keep a lot of effort in OSX versions, but looking at the c4d Users, i feel theres a lot of graphic designers with more artistic background than for other 3dapps.
Especially when talking about motion graphics (MoGraph)
Even in movie (specialfx/cg) Business there's a different demand and a lot of agencys are using Linux distributions. That why lots of plugins are made for win and linux.
So i think every 3D niche has its demands and uses its best suiting OS
