> A counter-example would be a pro Soccer playing saying he never plays casual matches with his friends anymore because he earns to do it. That does not happen and I believe it's the same with you guys in Go, right?

OTOH, I know collegiate soccer players that can't handle "stepping down" to local rec leagues. They learn an aggressiveness appropriate to the one domain, and can't turn it off in the other. I consider that a maturity issue, but it is an issue for people accustomed to one level of performance and competition trying to step into another.

Do you know what Pro Go players play for fun? Catan :)

Once you step into the professional aspect, you do not enjoy the game anymore. Its a passion thing. If you wanted to spend more time on the board at any point, it would be studying, not goofing around playing.

> But fun is probably what got you guys into this game, right?

Hardly. Almsot all professional players were exposed to the game at 4 years old, more like indoctrination. And as a grown up, if you start late (like I did, at 16), when you dream of professionality, the joy goes away, its more like a passionate driven goal of self sacrifice.