There is a big difference between "did" and "do". "Did" implies in the past. And like most new products, the initial pop is seldom duplicated 10-30 years down the road. I welcome anybody to try and market a Frisbee or Pet Rock today by suggesting every home wants and needs one, and "Joe the Plumber" made $3M a year (but failing to mention that was in the late 60's).but a lot of people did and do