Trade it. This type of trade deal brings out the worst in my game collecting addiction. I am looking at over 100 games on my shelf and having a "Come to Jesus" moment over 5-6 games? Take the credit (especially if you are getting 2x what you paid) and eventually you will get back to it. I have so many games to play there is no reason to hold onto some of these.
Had this same moment. I overcame it and traded in 20 games for $411.60. They were all backlogged and/or stuff I didn't see myself revisiting in the next 6-12months, except for some BF purchases and Sears/Kmart/Target clearance purchases that I hadn't even had the chance to open.
Used my $411.60 for a WiiU Deluxe and WiiMote/Nunchuck & NSMBU. I'm hoping it's not a mistake and I get more use out of it than my original wii did back at launch. At the very least this will end up being the console that my son grows up with so I'll take that over some cases collecting dust and just keep my eyes peeled to rebuy the games I really wanted for my collection going forward (it's not like there's a ton of wiiU games and/or new releases for PS3/360 that have my excited save Bioshock and Aliens).
Enjoy this promo and trade in as soon as you can, I remember over summer when they had this with the trade two for $40 promo going and a lot of the games tanked after 3-4 days.