that's a different case @bunzo than power-training a player from 3* to 5* multiple times and finally leave him in that quality.
Greens are free, of course needs time but considering that top100 asso groups are from countries like Vietnam, Indonesia, Turkey, where the salaries are 100-300$ per month, it's not so bad idea to spend that time for making a high lv platinum group and sell it with that price![]()