You guys want to hear something really sad?
Disclaimer: I have absolutely zero proof that this is true.
I was searching for threads on Japanese forums that talked about the PCE, and one guy said that he worked at an NEC warehouse in the mid-90s.
Over 100,000 unsold Duo-RX systems were apparently destroyed.
In the discussion that followed, it was said, and this jives with what I've seen, that big-name manufacturers in Japan never price things super-low to get rid of old stock because it hurts their brand image and threatens whatever their latest products are. That's probably true often enough in the West, as well.
Seriously, though, imagine a big cubic pallet of Duo RX boxes 10 wide, 10 tall, and 10 deep. Then imagine 100 of those. All gone.