What about this scenario -- you decided to BUY the movie via Blu-Ray or DVD, but then they force you to go through and see the previews before letting you watch

What about this scenario -- you decided to BUY the movie via Blu-Ray or DVD, but then they force you to go through and see the previews before letting you watch the movie you bought. And not letting you skip the previews. These companies don't have a clue.