Lets see if i can remember this right.
To trade in a console you MUST have ALL cables and at LEAST one controller. If the system works im pretty sure you will get 60 dollars unless they have changed it since i last worked there. For the controllers, u get 3 dollars per controller. You also get 3 dollars per any extra cable. Those were the numbers i can remember, i could be slightly off but i think thats about right.