Condemned was one of the 4.3 games that people were coming home with, I dont remember where I read that, but it was announced back when the Attach rate made news on all the websites. It was in a related article a few days after the news hit websites.
If thats true, it sold very very well.
The only others I know of that sold extremely well, and might fit into that attach rate were COD 2(obviously), Madden, PGR 3, PD Zero.
Go Ridge Racer!