It'd add to the design, QA and manufacturing costs while only increasing the sales by a tiny amount. Given the miniscule margins of PC manufacturers, any incre

It'd add to the design, QA and manufacturing costs while only increasing the sales by a tiny amount. Given the miniscule margins of PC manufacturers, any increase in the cost would be a hard sell. An increase in the manufacturing cost of say $0.1 might seem totally insignificant when a laptop sells for $500. But when the profit margin on the laptop is $10, that extra widget just cut the profits down by 1%.