Seems like a bad time to get PS4 at Gamestop, they are $300 right now after being much cheaper during the holidays.
Xbox One S on the other hand is on sale for $230/$250 for 500 GB and 1 TB respectively, not as good as their holiday pricing, but pretty close(especially for the 1 TB).
I've got both the Pro and X though so I'd just sit on the credit for a while most likely...