World Of Warcraft introduce the Token system...
http://us.battle.net/wow/en/blog/181...token-3-2-2015

I don't like this systems because "Rich" players will own the game, not only In Real Life but in games also.
Yup.. I'm adult, In wow use few boost for to help me lvl new character for crafting purpose and help me gain gold in game, because I have no financial issue for just US$60.
I have more than 20m gold in wow with 9 active lvl 100 character there, with the token system I can just sub 1 month and no need to spend any money at all for the rest of the subs.

This system will force the poor player to spend their real money to gain Gil and give an advantage to rich player, people will less share their knowledge because of this reason, the community will be more narrow, for sure crafting forum will be more quiet after that.

After for a while player who keep spend spending their money for Gill will give up and quit the game, I'm guarantee it.

For housing, Ask SE for solution... If you want to have Gil to buy a house by using a real money, that won't help at all because the house slot number still same and with higher demand the price will keep increasing and Inflation because player can gain Gil easily.

Just wait how Blizzard manage it later, either successful or not.