MS is smart to go after this audience.
This is kinda the thing with MS to all the Sony fans that were laughing it up all summer -- the XBox division is no push over and especially when it comes to North America they know their marketing and how to target the core audience.
There's so many people I meet even today who think the XBox 360 is more powerful than a PS3, even the PS3 probably has some of the better looking games this gen.
As long as they're not up against Apple, MS tends to know what they're doing. The $100 price differenece is what's really haunting MS now, but if they bundle a game for the US as well, that will go a ways in alleviating concerns I think.