Shouldn't church be free?

Looking at activities for my upcoming trip to Europe, and I wanted to go see the Vienna Boys Choir while in Vienna. They sing at mass on Sundays, but you don't actually get to see them until the very end. Oh - and it's like $100. For a church service. No offense boys, but I think I'll just download a few of your songs on iTunes and bring a Bible. Done and done. #amen