There are some good deals to be found on ebay.
I'm watching a copy of Street Fighter IV with 2 hours left and it's sitting at 99 cents with $3 shipping.
Also watching a copy of Red Dead Redemption sitting at $20 with no bids, but mine.  They usually go for around $40.
Also might get Battlefield: Bad Company 2 for around $20.  It also goes for around $40 on average.

I'll update if I win any of these and let you know the price at which they went for.

About $10 for a PS3 game... Normally I'd say that's a good deal, but since it's SF IV I wouldn't even pay that much.

(Sorry, I rented SF IV once and hated it so much I quit playing it before I had to take it back.)


Regardless, BF:BC2 and RDR would be great deals at that price.

It's still better than $60 though, by a long shot. 

I still believe Ebay is the best place to get video games.  You can always get games cheaper than in the store.  Especially if you want a used game.  Used video games on Ebay are as cheap as they get. 
I just got Far Cry 2 on the Xbox 360 for $12.  I could have bid on a cheaper one, but I had already won this one.  They often go for under $10.