I am no fanatic when it comes to a lot of these things that are said to be dangerous, but I think I'd get those lead pipes replaced. At the same time, I know it can be costly if they have to dig up from the house to the water main, and replace the pipes.
By the way, does anyone know what kind of pipe they use these days to go from the water main to a house? Back in the 60's I know they were using copper, but that could be real costly these days. I assume they are using some sort of poly (plastic) these days.
I'm curious, what year was your house built to have lead pipes? I know they have not used lead pipes for a real long time.