Interesting seeing out of all the games list in that thread, Entropia is the least known and has the smallest player base yet its record sale is over 10 x higher than the nearest competitor
I used to play a game where getting a top augment for just one of your item socket costs over 15k $, trust me EU is kiddie place compared with some real donate-fest games. Only difference is in those other games player have no illusion of being able to profit and withdraw .