Could trophies/levels be a means to virtual earning power in Home? A snippet from the article:
"And so here we are with Sony introducing the Trophy system. In essence it is the same thing as Achievements BUT there is an additional novel idea in there. Users have a level.
But I highly doubt Sony is going to let the leveling stop there. Sony has stated they want Home to be more gamer focused. Like a massively multi-player game I fully expect that a user's level will carry weight in Home."