Soon 8x DVD burners in every laptop?

Competition among the manufacturers of DVD burners take now place on the laptop battlefield. Faster than expected, the manufacturers are switching their production to 8x products, since the production costs are slightly the same as for 4x burners.
At this pace, it's reasonable to forecast that combos should disappear in a near future, when reaching minimum prices under which it doesn't make sense any more to build such devices.