If you live paycheck to paycheck in a small rented apartment, you are blessed. If you are wealthy, living on an acreage with a mansion and hired workers, you are blessed even more.
But that is just material stuff. Life, family, relationships -- these are much greater blessings.
So having over 600 grandchildren is great blessing -- much greater than possessions.
At what point does one stop congratulating a parent or grandparent on the birth of a child? The joy is real. It *should* be celebrated every time. Children are not commodities, burdensome consumers, privileges, or punishments. They are persons just like us. All human life is precious.