I don't think it's that so much as the need to convince consumers to upgrade as often as possible even when what they have already works perfectly. I think the

I don't think it's that so much as the need to convince consumers to upgrade as often as possible even when what they have already works perfectly. I think they actually do a lot of market research. They know that people like you and I might buy a good product that meets our needs and keep it for 5 years or more. But the bulk of their profits are coming from people who have to buy the newest whizbang model - and it has to look different - or else how will everyone know that you have the newest whizbang model?