If we sell them, we get the half money of the items. So, I think selling items are useless. But if the game will add nuggets, star piece, etc, then it will be usefull bc these items are made for selling.
If u want to sell items then u shouldnt't buy them. If u say u can sell for less than the real money then u can sell to the playwrs all will want it and if u want to sell more than the real money, then all rich person will buy and sell, buy and sell. So its weird.