Although not as bad as other clubs:
http://australianfootball.com/articles/view/The+case+for+australianfootball.com/70
Bullseye. That's a great article.
The other factor too, is that the 'greats' will always be close to the right age for today's media commentators, either guys they actually played against, or guys they saw when they were impressionable kids and teenagers. Another reason for the vast majority being from the recent past.