There are also lot's of people who have not bought a new TV in years. My father likes to brag that he has never bought a new TV. Also, a lot of people buying HDTVs wouldn't know HD if it hit them in the nuts. Or, they don't care. SDTVs have been hard to find, so of course people have been picking up HDTVs. That doesn't mean they are immediatlely going to go shopping for additional HD programming.
And while Fox is broadcating in digital HD, it is very easy to downconvert to SD. pleanty of customers ale already getting that as Dish and Direct prepare for the digital transition.
We are the early adoptors, and we are the most educated. Just becuse HD adoption will increase doesn't mean everyone will educate themselves to our level on HD.
Sorry but I don't share your opinion of lot's of people plunking down hundreds of dollars for HD TV's and being too stupid to realize what they've bought. A report indicated that HD TV's are already in more than a third of all households and that it will increase to more than 50% by the end of next year.
Even your father will eventually end up with an HD TV. It's only a matter of time and in your father's case, how much time is a matter of how stubborn he is.