this gen will go as long as it takes for the next 360 to hit the shelves
and that is generally agreed to be coming with in the next 3-5 years
and by then it should have the high end 360 skus priced at 150-200
and then when the 20 hits the shelves it will fit in at the 350 mark
And the 360 will drop to a one sku unit for 150 and stay there until it dies