The reasons these cases are brought is not because the 10 Commandments are on display, but that they are on display in government buildings.
I have mixed feelings on this.
The separation of church and state simply means the state cannot promote one religion over the others. That does NOT mean that all vestiges of religion, or religious iconography must be removed from public life.
No one is forcing visitors to a court house or capital building to acknowledge, read, or even adhere to the the 10 Commandments they might have on display.
So I really feel like it's a waste of time, money and resources that could be used to fight REAL injustices.
But on the other hand, why should a religious message be placed in a secular government building?
Why not have a copy of the Declaration of Independence on display? Or the Bill of Rights, or even that's state's Constitution?
All of those seem much more appropriate than the 10 Commandments!