"any business or domestic using Linux "
Let me introduce myself then - 6/7 (one's in pieces at the moment) netbooks/laptops/desktops spread over 2 homes and a motorhome - all run only Linux - none apart from one second hand laptop have ever had Windows installed - my latest laptop came £65 cheaper for not having Windows. From another post earlier today :-
"I'm writing this on a brand new laptop bought on-line from a UK company (quad -core i7, 8GB, 1080 matte screen) and I got it £65 cheaper by not having Windows installed. The case is a little naff but the screen ( ~15") and performance is gorgeous. OpenSUSE 13.1 installed in 8 minutes from a USB live distro and EVERYTHING works. Only Intel graphics but that is easily good enough to watch 1080p/50 video with cpus ticking over. Renders 1080p/50 video at ~1.7 mins per min of video (H264) with all 'eight' cores averaging about 80%"
Before I retired from a major pharma I had one big powerful dual Xeon Linux workstation with 3D graphics for the difficult stuff and a Windows desktop for the corporate grief - I was not alone - 200+ people in the same company had the same/similar set-ups.
You remind me of the people here who say things like "no-one need to upgrade anymore, even old hardware is sufficient to run a browser and a word-processor". Except some of us need as many cpu cycles as we can get.
In that vein many people, in absolute terms use Linux, every day and in every way, professionally and domestically and almost all of them have chosen to - not had if foisted on them by the PC suppliers.