One of the important marketing principles, used by all major marketers from automobile dealers to computer vendors to home builders to nearly any big business you can think of is what is called the upsell. Once you have committed to buying, you are offerred extra features, improved usability, a carrying case and more if only you would like to pay a little extra to get them. How often have you heard things like, “You are paying a lot for your car; wouldn’t you like to pay a little more to get the extended warranty.” Savvy marketers use these upsells because they work. Not everyone... [...]