I used to work at a bike shop where they went 100% Apple products. All the POS machines were macs. The entire company was mainly run with Filemaker Pro, which is pretty impressive when you think at the time, the company had over 10 shops.
They had one IT guy that managed everything and I remember him saying it was either going to be Apple or some Linux distro and by using Apple for all their stuff, it greatly reduced the amount spent on tons of other IT stuff that he would have to deal with if it were Windows based.
