Halo 3 ODST for $26 worth it?

[AlphaPanda]

Via a coupon code for $10 off my next purchase that I got for entering the UFC contest and my Edge card discount, I could get ODST for 26 dollars. Albeit the beta's almost over, I could probably get a few days of it played and then that'd be my Halo source until Reach came out. Worth it, or should I spend the $10 off on something else?

 

[MSUHitman]

It's worth it as you will have all of the Halo 3 multiplayer maps, an 8-hour campaign that can be played multiple times with 4-player co-op, and a really fun co-op mode called Firefight that is similar to Gears' Horde mode, but a session of that takes longer than Horde mode (and there's no matchmaking for it so you'll need friends that have the game to play that mode online with.)