I think the accessory packs (boxed items) come 64 to a case. Carded figures come 72 per case. So it should be in that range.
Pretty cool, but I'm not even going to attempt to grab it. It's a truly awesome warehouse find, but I don't really need to be spending money on yet another Spartan. Hell, I still have a couple of regular Spartans in my 'to sell' pile somewhere over here.