On average 15, especially wired controllers, for cash. Specialty and good quality wireless can be around 20. Likely more for the Pro Controllers Charger cables have value as well, 2-4 a piece.
It is always best to call or go in and see them directly so they can see the condition of it because like it was previously stated trade-in values fluctuate constantly
I would recommend calling to find out as trade in prices fluctuate.
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