Just to break down costs: $600/mo health for wife/kid. $7200/yr. vs ~200/mo + 1000 penalty. $3400/yr.
We're not exactly getting Xrays and CT scans on a daily basis in my household! If my wife was to get pregnant, I know most hospitals offer a specialized bundle plan for dealing with the pregnancy for a set flat rate. All check ups, ultrasounds, single doctor, etc, for $6000.