The OP has a point, as stated above. The price difference will cause the buyer to think about the difference, which will win many buyers over to the PS3, since it always has had, in many critic and consumer opinions, greater value for the money.
When the excitement of the price cut is over, the PS3 will return to the top of the HD weekly sales, and the HD marketshare will have increased in both percentage and future potential thanks to it -- not hugely, but any strides the HD consoles can make forward, at this stage, is a good thing.







