It simple from their position PRICE ELASTICITY
we just need to have prophetic abilities to predict their changes and actions.
I'm idiot that I WAS thinking that the items that you buy to use and not sell should be cheaper.
Now I learned is just PRICE ELASTICITY
the non sell gems is hidden from menu you JUST NEED TO FIND THE WAY YOUR SELF so simple .
I'm my eyes those 2 actions is like a beautiful scam.
Bookmarks