Everybody and their brother has been putting Apple in the grave for the last 10 years, but they are still around.
Truth is, there is no better graphics computer on the market.
Sure the PC has come a long way from where it was, but as far as most people in the graphic arts business are concerned, Apple is the way to go. Many companies have invested heavily in Mac hardware and software, and are not going to go quietly into that goodnight when it comes to reinvesting in a new system that their designers and artists hate and are not productive on. Apple has made their share of mistakes, maybe more than their fair share. They tried to make their computers everything to everybody instead of concentrating on what they were best at. If they would focus on making their computers better, faster, and more reliable to the graphics industry, I'm sure that things will turn around.