Ok, I can share some info. I saw the Xbox 360 version of this 'Pre-Owned' stickered for $22.99. Its in the current artwork grey Plat. Hits case, and is a middle hinged flipper for two discs. Inside was a foldout map and the manual. Leads me to believe all bonus content is on disc to be installed to the HDD.
I immediately ran over the PS3 used area, but they only had the regular for Mafia 2. I noticed a dummy 3-in-a-row display for the GH edition, priced at $29.99. I should have checked for a gutted case to see if it was a flipper or not. Oh well.
As for me, would have loved to pick it up on the PS3 b/c I have the LE for the 360 w/ all the outfits, and figure the DLC could be 200pts each one day. Going thru it again on the PS3 would be fun. Definitely one of my favorite games of last year!