I want to start a business to repair Nintendo consoles. I figured I might get a good start on Mercari. I charge $20 per repair + the cost of the parts needed. The Black and Red 3ds XLs are both up for sale. The others are not, at least not yet.The cost of this shown is just the assumption of how much it would cost. If I break a console, I buy a brand new one for you, free of charge.