Game Alvin Chipmunks Xbox

I have two questions about gamestop?

HOW OLD DO YOU NEED TO BE TO HAVE AN EDGE CARD AT GAMESTOP
and how much will this be worth in store credit and cash?
Wii: PES 2008
Alvin And Chipmunks(guitar game)
Pokemon Battle Revolution
Rockstar Table Tennis
Nintendo DS:
Pokemon Diamond,
Pokemon Pearl,
Open Season,
New Super Smash Bros.
PS3: Guitar Hero 3- game only
Xbox:
Fifa Street.
PSP:
Spongebob Yellow Avenger
MLB 2k7
MLB 2k6
NBA 06
Cars
Need for Speed: Carbon
PSP MOVIES
PINK PANTHER
SPIDER MAN 2

Can U just tell me a rough estimate
And i cant use ebay and amazon

Because I really want to buy Need for Speed: Undercover(XBOX 360)
and Guitar Hero World Tour-Game Only(PS3), and some other need for speed's

Just give me a rough estimate or close estimate because i called them and they said you have to come to the store for a rough estimate

Please answer both

Hi , instead of deciding which game to invest on. Why not consider getting a Nintendo storage unit instead?

You can then play burned games on your Nintendo DS. Its no difference than the ones you purchase from major retailers like GameStop and BestBuy etc. Its just the price of a single 'original' game, and you can then enjoy over 3000+ games as well as running music and movies on your Nintendo DS too!

Here is the storage device, hope this helps!

http://yuhai.notlong.com

Alvin and the Chipmunks: Chipwrecked Alvin and the Chipmunks: Chipwrecked

Alvin and the Chipmunks: Chipwrecked is a Rhythm-Music game inspired by the 2011 major motion picture of the same name. The game features six customizable chipmunk characters from the Alvin and the Chipmunks franchise and 30 songs that players dance to either alone or in 2-player co-op...
Alvin and the Chipmunks: The Squeakquel Alvin and the Chipmunks: The Squeakquel

In Alvin and The Chipmunks: The Squeakquel, players can play as Alvin and The Chipmunks (Alvin, Simon, Theodore) or The Chipettes (Brittany, Jeanette, Eleanor). Musical sparks ignite as they jet around the world, rock the house in 25 concert locations on Wii? and 11 in the Nintendo DS? version, and perform together in the ultimate concert finale...
Alvin and the Chipmunks: Chipwrecked Alvin and the Chipmunks: Chipwrecked

Alvin and the Chipmunks: Chipwrecked is a Rhythm-Music game inspired by the 2011 major motion picture of the same name. The game features six customizable chipmunk characters from the Alvin and the Chipmunks franchise and 30 songs that players dance to either alone or in 2-player co-op...
Alvin and the Chipmunks: Chipwrecked Alvin and the Chipmunks: Chipwrecked

Alvin and the Chipmunks: Chipwrecked is a Rhythm-Music game inspired by the 2011 major motion picture of the same name. The game features six customizable chipmunk characters from the Alvin and the Chipmunks franchise and 30 songs that players keep rhythm to either alone or in 2-player co-op...
Alvin and the Chipmunks: The Squeakquel Alvin and the Chipmunks: The Squeakquel

In Alvin and The Chipmunks: The Squeakquel, players can play as Alvin and The Chipmunks (Alvin, Simon, Theodore) or The Chipettes (Brittany, Jeanette, Eleanor). Musical sparks ignite as they jet around the world, rock the house in 25 concert locations on Wii? and 11 in the Nintendo DS? version, and perform together in the ultimate concert finale...

Game Alvin Chipmunks Xbox