Video Replay for Baseball

I do not understand why the baseball commissioner has such a problem with using the video replay.  The reasoning that it would prolong the game is just ridiculous, considering the time outs to argue about the calls prolongs the game too.  With the video replay, at least both teams would be satisfied that the correct call was made which would save all the arguing. 

Sometimes it is difficult to tell if a ball is fair or foul and if the video replay was used, it would make sure the game is fair.