COD will likely have an effect on sales but unlikely as high as you assume it to be, if Reach drops down in price by Christmas it is likely that those pesky 13 year olds will just bugger their mums into purchasing both COD AND Reach. At the present, in N.America, Amazon has the price difference of $4 between them, so it is likely that Reach will drop in price later on, in UK the difference is less than £1, bottom line, they're both just as likely to be on the Christmas list. Although, I would not underestimate the power of Second hand games market.. In UK it's MASSIVE.
Disconnect and self destruct, one bullet a time.








