In response to davidap's comment:
Upon further thought, there might be some correlation between what the NBA was to what it has become: A watered down league with less greater overall talent.
A lot of people like to claim the league has less talent today than in decades past. I strongly disagree. Defense is being played at a much higher level than ever before and there's much greater individual talent than in any other era, except possibly the 1980s. Expansion has spread it out a bit more than it would be in a smaller league, but the talent is definitely there.
I see your point, but have to respectfully disagree. I don't think the D is all that great many games, I just think the offenses are so meager that it leads people to believe the D is great. The talent pool is drying up. Give me some centers today that compare to the likes of Ewing, Kareem, Duncan, Olajuwon, Parish, Lambeir, Walton, Shaq. Don't even say Howard.