There cost model was off, I have two kids and both are playing online games, mostly club penginue. Sure it's a little kiddish but the content is forever changing and that keeps the kids intrested. My son however started to play the free version of LEGO universal and found that he liked that but having both subscriptions was not going to happen, one of the other.
That's when cost comparison came in and lego universe was more per year then club penguine is. If your going to bring out a game for kids, either match the current cost of other games out there or you will be left out.
Perhaps a new game model should be made instead, like being able to go everywhere and do everything but if you want that 'super axe' that makes the game easier, then you pay for that. Or speed bonus, kind of thing. This game would of been amazing 5 years ago.
Lego yearly cost 89.99
Club penginue yearly 59.95
Take that and X2 for both my kids and well, it's gets expensive.