It's still a big deal because the closet and the down-low are still very real things, and discrimination and violence against gays based on their orientation is still common. The whole point of famous people coming out right now is as much about increasing overall acceptance of gays as it is about telling the world whether they personally are into chicks or dudes.

Yes, there are a lot of gay people in entertainment, but just as many who are very probably gay and still feel they need to conceal it, maybe even to themselves. I'm pretty sure we all know the deal with Travolta and Cruise. There are more high-profile actors who are out than there used to be - Neil Patrick Harris, Ian McKellan, dude from "The Big Bang Theory," and others - but none of the big blockbuster openers are out. Very few current or even ex-pro athletes are out, and none of the big dogs are - nobody who is making multiple millions per year, nobody who has a contract with Nike or Gatorade. There is still a widespread perception that it will hurt your career more than help it. There still incidents like this one: http://en.wikipedia.org/wiki/Ryan_Skipper Gays are still subject to jail in Jamaica and execution in Iran and Saudi Arabia. Afghanistan will still jail or fine gays, but stopped killing them about a decade ago (progress?).