Just watched an English Premier League game with piped in crowd noise.

The crowd noise was pretty realistic most of the time, but at key points it was obviously fake, and therefore became annoying...although only mildly so. I think I'd rather watch without constant buzz of fake crowd noise, but it doesn't matter as much as I thought it would. It is also interesting to hear the players talking and yelling at each other during the game (when there is no crowd noise).