"The serve is one of the more difficult shots for a novice, but once mastered it can be a considerable advantage. Advanced players can hit the serve in many different ways and often use it as an offensive weapon to gain an advantage in the point or to win it outright." - borrowed from Wikipedia
I totally agree.
. . .
I went to Flushing Meadows (USTA Billie Jean King National Tennis Center) last Sunday to watch the pros practice. It was the day before the US Open, and you could see on their faces the determination and passion they put into each serve and return.
The US Open, by the way, is one of the oldest tennis championships in the world. It is also considered to be the most well-attended sports event in the US. For more facts and figures, check this out.
“To serve is beautiful, but only if it is done with joy and a whole heart and a free mind.” -Pearl S. Buck, writer, Nobel and Pulizter Prize winner