Playstation 4 definitely has higher value for trade-in but I'm not sure why he got that amount. Here are Gamespot's trade-in values from their site:

Trade Value* - PowerUp Rewards ProTrade Value**
PS4 System Hardware $344.50 $344.50
Assassin's Creed IV Black Flag $32.50 $35.00
Call of Duty: Ghosts $32.50 $35.00
FIFA 14 $32.50 $35.00
Madden NFL 25 $32.50 $35.00
NBA 2K14 $32.50 $35.00
DualShock 4 Wireless Controller $39.00 $42.00
PlayStation 4 Camera $39.00 $42.00
PS4 Controller Charger Dock $10.40 $11.20
PS4 Micro USB Charge Cable $2.60 $2.80
PS4 Wired Headset $3.25 $3.50

So Killzone 6 goes for $15? Lol.

Anyway, cool promo.

This is a good deal. Awesome for that customer, he got enough money from this trade-in to be the lucky owner of an Xbox One!

Good deal if u value titanfall.
btw can't wait to get infamous, Killzone SF with my ps4 incoming soon. Fifa too maybe

How silly can you be to buy a console at launch, have it for 3 months to play launch titles, then think fuck it I want the other console ? Seriously these people musn't think their purchases through or do eff all research .

Kinda feel bad for the person that traded it in still. Even with the trade-in that's still a significant loss due to taxes and poor trade-in value for the games.

how is owning an xbox lucky....

Moderated,

-Mr Khan

My friend went from 360 to wii to ps3 to 360 to PC. I always made fun of him and told him if he didnt trade in the 360 to begin with he could have the ps3 too with the money he lost.

Great deal and also great move.

PS4 + 3 games for an X1? From a value proposition that is so backwards.  Here take my Lexus in trade for that Corolla.