Tournaments, tournaments and more tournaments...

[lawtai]

Well, if you don't have all the maps, then you're limited in what you can do when you start a game. In the current tournaments, you automatically lose a match if you're required to start as P1 on a map you don't own. So I think it would be worthwhile to require all maps to participate, so that everyone's on an even playing field and some people aren't given free wins or forced to have a loss.