I think real issue here is a perception problem. How often have you heard someone complain that their system is too slow and how they need to buy a new system? --I hear this a lot, but the reality is quite different. Their current system is more than fast enough, particularly if they bothered to learn how to use and maintain it better, so the underlying truth is, they just want a new system and they'll make any excuse to justify the purchase. They'll cite "Vanity Metrics" like processor speed, disk space, connection speed, amount of ram, and yes, even battery life as excuses to justify buying something they don't necessarily need. Complaints about the supposed hassles of charging and chargers may also turn out to be hot air... Now that I think of it, if you can figure out a way to charge devices with just hot air, you'll make millions. ;-)