Why does watching song and dance bring such pleasure, such pleasure and enjoyment that we might even pay to see others do it well?
Why don't we consider other things -- performed just as well -- worth watching? Would we pay to see a carpenter build a bookcase? To watch the baker mix batter for a cake? To see the cleaners iron our shirts? No, we simply want the result of those things: the bookcase, the cake, and pressed shirt.
This must have significance in the area of worshiping God, who we don't see but whose results we do see.