I don't think this will go over well. Sony is introducing RMT on ALL Vanguard servers. It won't be segregated like it is in EverQuest II.
I guess Vanguard is a dying game, so they are trying to eke out a new revenue stream, but I can't imagine how this would help the game grow. Any additional revenue they reap from LiveGamer services would probably be offset by lost subscriptions in a game that is already virtually deserted.
Still, what do I know. The game companies aren't paying ME the big bucks... :)