By prolonging the time until ASO retailers will simply continute to sell obsolete products and sell these to people who are oblivious to what is happening. IMHO every TV without a digital tuner or DVD recorder that is sold should have to come with a warning saying it's in effect obsolete
I think they should pass a law forcing retailers to stop selling devices without digital turners similar to what they are doing overseas.
The sticker system you describe is used in Europe. I was in Italy in 2009 and I saw warning stickers on analogue tuner TVs. From June 1, 2009 retailers in Italy can no longer sell devices without Digital tuners. - no exceptions.