Good to see pretty much everyone in agreement.
Baptism doesn't wash away our sins since Jesus did that for us. Its symbolism and more. It not only says to others that you believe in Christ, but its also saying to God "I'm ready to serve." I don't have the link on me, but I once read that the rate of those baptized moving away from Christianity to those who were not baptized and moving away are quite different. I want to say it was at least 40-60% difference. Generally speaking, if you get baptized, you are making a commitment.