In prime condition, I'd say $80-100. If there's wear and tear or other features removed from it, such as drive cages, it could go as low as $40. It's a pretty good case as far as I'm concerned so as long as it's in decent condition you should be able to sell it anywhere from $60-100.
You can always list it somewhere for $100, but don't expect anyone to bite or for people to offer far less.
Though on Amazon it's listed as $190 new. If you factor in a 50% depreciation, the best you can look at is $95. I think the best price to list it would be somewhere between $70-90.