Price to value ratio is relative.
With the DSl still selling in record numbers, price is clearly not a prohibiting factor. Considering that the majority of DSl buyers area already in the mass market and extended market audience (to whom a lower price would be used as a carrot to entice more casual purchases), there isn't any need.
Won't happen until sales plateau and dip significantly YoY. I don't see that happening any time soon.
OP sounds like another case of "X product isn't worth X price at retail for ME personally, so X company needs to lower the price."