I think this is true as well. At least when the two players are able to consider themselves equal, or around that level.
Before that it's one person trying to feel like they're on the other's level, once that is achieved (in the weaker player's mind), then they feel much more lax and don't worry so much about beating the other as much as just having fun and experimenting.
Course i'm the weaker player usually which doesn't end well.