well, it costs nothing (0.99$ is nothing) and since people like it, they won't think twice about spending 0.99$, not to mention there's a free version too
also, it more or less costs nothing to develop
what really matters is not the downloads of the game, but the fact that iphone and ipod/ipad is used for games, even if they are msotly free mini-games
don't mind my username, that was more than 10 years ago, I'm a different person now, amazing how people change ^_^







