Being a Cubs fan and a regular Wrigley Field visitor, the Cubs as stated were the last team to add lights at Wrigley (which was nice, because before that we could claim we'd never lost a night game at home.) No matter when they schedule the games, the Cubs always get around 38,000 people at their games. Day games. Night games. Doesn't matter. I think that it's more tradition to keep scheduling them during the day because they can and it's not hurting their ticket sales. Wrigleyville is AMAZING too. Tons of little bars, restaurants, shops. The community of people there is really cool. Hope this answers your question and a little bit more.