Activision has been chargingR$70 for the current gen console version of Call of Duty for the last two years, but Modern Warfare 2 is the first time that price will extend to the PC. The PC has long been a holdout for arbitrary game price increases.
'Modern Warfare 2' is jumping on the price hike bandwagon and players aren't happy about it. Unfortunately, the simple answer as to why MW2 is set at such a high price is that $70 has become the new standard for triple-A games.