Bad Company 2 sounded immaculate. I haven't played it with my Grados( which I understand aren't really gaming headphones, but they are open, they're my best sounding headphones, and they give me great positioning), but I did on a speaker system and... JESUS heh. Supposedly systems like the PS3 are at least using Blu Ray so they can store uncompressed audio( which isn't neccessary but I'd rather have that then 100k by a long shot)
I think the more popular items like Beats, Bose, and those 50 cent headphones become, the more attention will be brought to file quality to the average consumer. Its logical enough- graphics are insanely pretty right now so audio is the next step











