What can we learn from pro matches

I'm watching a lot of pro matches. One thing that strikes me is the length of their serves. They will often serve long but not super fast or long, in a way that it seems easy to attack, precisely what we're being advised against. This I can only explain by the idea that indeed they are inviting an attack so that they can counterattack more forcefully. Is this indeed a regular tactic?

Can we learn anything from pro games at all? I come from a board game background (Go) and in pro matches in that area so much is going on under the surface that any learning based on it is mostly illusionary. You get into bad habits because you're copying superficial aspects of pro play without learning the fundamentals which they have left behind them.

So what can we learn from pro matches and where should we be careful?

Hi Dieter,

I think we can learn a lot.  There are often things that are illusionary though.  For example everyone watched Waldner and thought that he played with a really small forehand swing and blocked all his backhands with sidespin.

We tend to get attracted to the spectacular shots and forget about the general shots that players play for 90% of the time.