yea Dave , your comment made me think from my work experience in TV's and the HD thing and flat panels happened, the low end does come up because the factory's stop making the old stuff and parts made obsolete. The newer HD parts are all that's available so the cheaper end products have to upgrade and use the new available chips.
Like the CRT TV's., Flat Panels took over so the assembly lines and marketing dumped CRT and the CRT TV's were just dead technology, not because they didn't work but because of the "chain" of parts were dumped and so it was over. I can still recall the last dinosaur CRT on the shelf of WalMarts, and stores ...watching the CRT die after a 50 yr rein or whatever it was. There's no more 480 TV now it was 720 then 1080 then more and more beyond a human ability really. Our group made alternative technology to compete against LED ...so we died off, like Plasma and the other losers....LED was just too good. Samsung was the largest customer playing ALL the technologys but eventually when LED showed to be the best, Samsung and the big customers dumped their Plasma, DLP, and other tech lines...LED HDTV...60inch for $300!! lol....used to be $12000 in the beginning.