I agree with you Richard, in a way. Being born and raised in the U.S. I have never experienced the non-tipping structure except for short periods of vacation in Europe. I did not feel like the service was as good over there as in the U.S., but maybe that's because we were Americans in areas that don't particularly care for Americans.
After reading what the stiff rate is on cruiselines I'm almost leaning toward a tip included structure so the personnel get an optimum amount. But then I think service to the customer will suffer. I also think that if tips were included in the fare we would start tipping again anyway, as that's our custom; as PaulB stated on another thread.