As a die-hard Pacers fan I am scared to death about the Pacers losing game #5 at home.
But being a totally objective NBA playoff observer, each team has won their road game, home teams will win out the rest of this series.
Another of my NBA playoff theories, is that if the teams are even, and I think these teams are, each team will win one road game. However, the Pistons have not played "their great game" yet. They were very good in game #3, but look for the Pistons to blow the Pacers out in game #6. Pacers will return the favor in game #7. Game #5 will be the best game by far in this series, I would expect an overtime, a lost second shot, or something to that effect.
So I am making this prediction as an objective NBA observer, not as a Pacers fan.