Buyer Beware or Buyer Was Warned?

Before most of us were born, the auto manufacturers decided that they would change out the showroom once a year with enhanced models. Of course, consumers knew this and decided often by date whether they would pay full price, wait until the dealers would look to move cars off the lot with closeout sales, or hold out for the next model year. The same can't be said for personal technology. You buy an iPad or a Droid today and there is no way of knowing if your product will be outdated in days, weeks, months or more. Is this fair?   When is the right time to purchase a mobile device? Do you envision pushback by consumers that will bite the mobile operators and manufacturers like Apple? Is this a breakdown at the Moments of Trust?