Where should I buy Halo 3 with gift cards?

[Jazzy]

I have a $20 gift card to Block Buster and Halo 3 where it's $30
I have a $15 gift card to Best Buy and Halo 3 where it's $20
Please Help,
I'm leaning towards the Best Buy deal.

 

[CaRnI]

I vote for best buy

-it's $10 cheaper than blockbuster
-best buy doesn't sell used games like blockbuster does
-it's a great price for halo 3

i have 3 copies of halo 3, i paid $60 for the first, $30 for the second and $25 for the 3rd. I almost feel like running out to best buy to get another brand new copy for $20.

Go to best buy and get halo 3 then go to blockbuster and rent a couple other games.