you arent listening. people who dont already own players will almost certainly not have either the screens or the audio hardware to make use of bluray, either because they cant afford it or dont care for it.
you need to buy a new player to play bluray; sorry your £20 dvd player isnt good enough. oh, then you need a new screen because your crt or your little lcd isnt good enough to show any difference between the bluray disc and the dvd edition. oh sound? well you could use your tv's speakers, or even that nice little surround systems youve already got , but really you need to buy a new av amp and set of speakers to take advantage of HD audio....thats only another...£700 or so, minumum...
"erm, i think ill stick with dvd".
You have to convince people its worth forking out for the hardware and as i said, the majority of people(ie NOT US) dont care. if they dont care, it will take a hell of a lot longer to wipe dvd out, if at all. why do you think cd is still around, or analogue terrestrial? dvd is no different. I still buy dvd's because i dont beleive some titles are worth paying the extra for - some films just dont benifit from HD. if the prices were the same then great, ill buy the bluray, but then i already have the £2k + of kit I i feel puts it to good use.