The thing is that companies, employees or every other person in the 'design' world is totally convinced that it is still like it was in the time you described. The problem is that people in that world expect you to have a mac, hell they even get disappointed when you tell them you don't own a mac but work your way around a 'regular' machine. The OS is still overhyped too (imho). It works quite nice and has it's pros, but also it's cons.
The macs these days are pure for reputation. When you go to a job interview carrying your mac for showing of your portfolio you might have a higher chance to impress the employer