This will be nice and short, and to the point.
I remember back in my ole days, I walked miles to school...in the rain, sleet and snow!
In other words...what happened to OPEN betas actually being open? These days...lets take Aion as a recent released example. Aion limited the amount of people who could be in the open beta...they even made you PAY for the game to play in beta.
Who thought this "great" idea up? I know Aion isn't the first, but its most recent in my mind. Why even call it OPEN beta? Call it a paid preview or paid trial or something...having to pay to be in open beta, is not open...its a paid beta.