Me too...it's part of the overall experience, plus many of the servers are late teens/early 20's who are just trying to make ends meet, get through school, etc. They're giving me great service and I feel the whole process works for everyone.
One of the last glories of America is our outstanding customer service. It may strike Americans as sub-par but just talk to British and Europeans who are amazed at the quickness and professionalism of young people who serve in restaurants and stores. We’re spoiled in America - so that any lousy experience in a restaurant becomes a huge story in our mind. It’s only because it is so rare.
In NYC, we have some truly outstanding waiters. I can’t even remember when I’ve had bad customer service. So I tip accordingly. And, believe me, unlike what someone else said, it is not because I like to tip “peasants.” Mostly it’s because I worked as waitress.