Mike, there's a question you didn't answer earlier that I'm curious about.
Are there other relatives living near your daughter and her family? Not that they could take your place, but just wondering if the grandkids have another set of grandparents living nearby and seeing them often.
They are all alone in North Carolina. They moved from California to Matthews NC less than a year ago. My daughter has a newborn and a 3 year old. Her husband has to be gone a lot for his work, so she really needs some help, especially with the 3 year old. They love us because we don't meddle, we just help. We let them live their own lives and just try to be there when they need us. Baby sitting is a great help and a joy to us, things like that.
One key component is that I am personally much happier out there and not just because of the kids. I love the countryside and the people. I think that the Lord puts the desire in our hearts when he wants us to do something, and I really want to go.