I can see where you're coming from Goog, but that doesn't explain why people are no longer playing the games as it is now.
If we do nothing, nothing happens. So we must do something. Adding games isn't really an option here because there aren't that much good games, and we simply don't have the time too look through all the available games to find that one good game.
Besides, the sole purpose of the arcade is not to play a game, but to have the best score. If you want to play a game, you go through the "Free Game Downloads" forum. So yes, this arcade's only reason is to have the best score. I entirelly understand: if you didn't win, but want to be on the top, you must try harder, or live with the fact that you're not that good. This however doesn't change the fact that people stopped playing the arcade because they gave up.