Might be his personal opinion but in the future when people will be looking back at the great players, the olympics will not be rated as high as Slams.
that's actually pretty unlikely no offense. TENNIS has not been in the olympics for very long, but decades from now it will have been a part of the olympics for some time and grow in value with each increment of 4 years. the fact is that the significance of the Olympics even in tennis will grow and grow and probably surpass a slam eventually.
what you have to face are the #'s and pride people have for their countries. there is a reason people fight so hard at all of the other olympic sports in the world: because it is such an honor to be the best at something in the world and be able to hold that honor for your country. the prestige will become greater than having a slam in tennis definitely, if it is not already close. also as another poster pointed out, you have less chances to get one. one tournament in 4 years versus 16 chances in 4 years? no offense but 1>16 as far as odds and importance.
Nadal is correct, and esspecially when considering someone like him who already has 10 slams, the Olympics just grows in importance. he has only won it once before and it is very rare that chances come up to win it.
some of you are acting very short sided if you really believe that the tennis Olympics is not important and will not grow exponentially in prestige