Re: how to teach tennis?
Yeah 30-50 is quite a bit. I mean in Arizona/California I know plenty of places where you can get a qualified professional tennis coach for even just 20 dollars per hour. Maybe it would be more expensive in New York, or maybe not since tennis is more of a Florida/California thing anyways.
Federer / Haas / Safin / Gaudio / Kuerten / Youzhny / Nadal / Gonzalez / Ljubicic / Hewitt / Soderling / Wawrinka / Coria / Nalbandian / Kohlschreiber