Is the nba age limit fair? Isn't this just an NBA/NCAA plot for Colleges to make $ off star athletes.?

Where would Ohio state be with Mr Oden? Texas with out Durant? These are all guys who could be millionares right now instaed of making thier schools millions. What college did Beckham got to? What about Ronaldinio? Did Anna kornikova attend college? Its funny how we are not forcing baseball playres to go to college, or tennis. These two sports don't bring in as much revenue to a university like basketbal does... Its all a buisness, stop hiding that fact with the idea of helping students further their education. What was one of the main reasons most of us atteneded college???? To make more money when you graduated. the higer the degree the more money you made !!! If we are really concerned about their education then why not make them graduate first before enetering the nba?