GameStop retail stores offer a $50 GameStop Bonus Credit towards the the purchase of a PlayStation 4 Pro Console or Xbox One S Console for free when you trade in your PlayStation 4 or Xbox One console via this printable coupon. Stacked with the current trade-in values of the older models (currently starting at $125 for PS4 and $75 for Xbox One), that yields a huge discount if you were looking to upgrade to these current-generation 4K UHD-compatible systems.
Note that trades must be in full working condition to receive full value. Defective items may be eligible for trade at a lesser value upon store manager approval. Trade-in values for older consoles may change daily.