Yeah, agree with July. It's up to you, if you have 50 green bags then go for it. But if you decide to buy him, then do it today since the list will be refreshed* by tomorrow morning (*what the h*ll that now means since only like 2 players, mostly 28-29yr olds gets replaced)
I did a mistake the 1th day, I saw a 24yr old AML/ML/DML with a shadowstriker ability, only 6SKP from 7* but thought, "aah I buy him later, the list will not refresh".. But the list did refresh (4times that 1th day) and he was gone. Since then, I haven't seen any ML or MR on my list.