Motivation? In other words, a focus on market share seems to me like it's a much more selfish thing, and that Sony is perhaps only going in the direction that

Motivation? In other words, a focus on market share seems to me like it's a much more selfish thing, and that Sony is perhaps only going in the direction that they are because they perceive that it will be better for their bottom line in the long run and not because they care whether or not their customers are happy. It's hard to see how they would not be the same thing, but at the same time I think there is an argument to be made that there have been times that Sony have done things that decreased consumer happiness (e.g. removing the ability to install Linux on the PS3) which did not have a particularly adverse effect on their market share (how many people actually stopped using PS3 or decided not to buy one when Sony made this decision? I do not actually know the answer, so my argument might be way off base, but I had the impression that it was some insignificantly small number).