[PeterisP]

If you had said that there are consumers who want long battery lives and long operation lives and are willing to pay a premium for that, then Dell and Apple might have something to learn - but the existence of consumers who want a low cost option for that is irrelevant, since serving that market would just lower your profits by cannibalizing your sales to the people who are not only willing to pay $600 every 5 years but $1000+ every 3 years.