This particular editions comes with:

• Splinter Cell-branded USB drive that includes a "Making of" feature, wallpaper, concept art, storyboards, and more
• an art book titled Fifth Freedom: The Art of Splinter Cell
• a pair of decals
• a prequel comic book called Digging in the Ashes
• a "steelbook" DVD case.
• and several in game bonuses: "first access" to the close-quarters MP5-SD3 submachine gun and a 3rd Echelon outfit for multiplayer action

All of this can be your for $80 dollars come the game's release in February. Now my question - is it all worth it? Well, for those heavily invested in the mythology of the game, I'm sure the answer is a resounding yes. However, having "first access" to a weapon you will presumably end up getting anyway along with some "making of" content may not be for everyone. I myself tend to buy the Collector's Edition of most games because I like seeing the process and evolution of a title and most offer that. Indeed, it will essentially come down to if you have enough conviction in the franchise to make this part of your swag library.