Jaerik beat me to it xD
Couldn't have said it better myself~
On a side note: I agree with ya #2, but keeping the distribution to a limit that's fair to everyone is the key and therefore most difficult thing to get right. You don't want someone with a high credit card limit getting a greater advantage over players who can spend nothing more than their monthly fee and time invested, but rather a small option for casual players to at least have the choice to get ahead to a reasonable level without needing to invest time they don't have to get what they want out of the game.