Different people get different things out of video games (and everything, really). For some, the fun is learning, and the game stops being fun when you understand it (this is me). For others, the fun starts after they're learned, and starts being good at it, but still have competition with others. For yet others, mastering it and being the best is the fun.

All these groups of people sometimes play in the same lobbies, and what the players "gain" from the session can be very different depending on the person. There is no "right or wrong" way to play video games, or the right/wrong motivation for it, it's just different.