NFL pre season is design to have four pratice games. It suposed to be for rookies and other members of the team to earn their place as starters. That is really important, but , the training camp and a couple of games would be enough to determine that. In my opinion it might take only a quarter or two of exhibition football and wait until real football is back in September.
In the other hand, the games does not count, the startrers and the stars of the game barely play, the score doesn´t count and most of the time is unuseless to watch it. Also, the stadiums are empty. Pre season football is even worse than the pro Bowl.
The only reason to watch pre season games would be for the Quarterback battles, key depth chart battles, free agency additions and watch the noew coaches and systems.
In my opinion is useless and boring… keep playing Madden