This isn't a fair representation of numbers. Week 2 will tell more. Reason being, i checked the VGChartz figures on Wednesday when the first ones went up. Sorry, but the game didn't even come OUT until the Friday here in the UK. So a lot of the actual "week 1" sales will show up in week 2.
It bugs me how because a lot of PC Gamers buy digital copies, which IS the future of game distribution one way or another (even if box copies in stores only sell the licence keys which is semi being done with SteamWorks games on shelves now), then it doesn't show in these kinda figures. These figures are simply box copies shifted by the publisher, to retail stores. They don't count in EA's own Digital Store, or Steam's sales. If those were added, then the PC would easily have around 200,000 sales "week one", there were ample pre-orders on Steam for C2.
Week 2 we'll look at the PC figures again, hopefully this figure will show ~200,000 boxed, plus we know at least + 200,000~ with the 50-50 boxed:digi split. So by week 3 the game will probs be gold

If you want confirmation on whether Crysis 2 is selling digitally well enough, check the current Steam Top Sellers list. Crysis 2 is second only to Portal 2 itself, and we all know how well that game's gunna sell!