OP here again with an update...
I had no idea what kind of debate I was getting started. I just wanted others people opinions. I decided that the only opinion that really mattered was what our Preschool recommened. After meeting with the director today we have decided to keep him at the preschool for 1 more year. It really boiled down to the fact that he was not ready. We all shared the same concern that it could effect his confidence and that is not worth the risk. I know my little boy and I do not feel that he is ready for Kindergarten I thought maybe 2 years would benifit him but I now believe it might / but it also might not. I am not willing to take that risk esp when we are in a preschool that I trust and believe in the readiness they are giving him for kindergarten.
And for all those that keep talking about a 7 year old in kindergarten have no fear that will never be my son. He will start kindergarten in fall of 2011 17 days after he turns 6. And to the parents of winter babies. You are so lucky you don't have to make this choice.
Just curious but is your preschool admin really that objective?? After all if you move your child to the private school for Kindergarten, they lose that money. It is your decision but giving your child that chance at private Kindergarten would have probably been more beneficial than another year of preschool.