DDR3 is not "retro", for chrissakes.
It was 17 years old, or 14 years since wide distribution in the USA.
What counts as "retro" basically comes down to when the person you ask was born.
The final new international games were released in 1994, but Europe still got new games into 1995.
Japanese Famicoms were still being sold in Japan when the PS2 released. They sold more in Japan in 2001 than in 2000.
So no, calling the NES "retro" in 2000 wouldn't have made all too much sense.
By 2006 when the PS3 came 'round, the NES was definitely retro. It wasn't a livingroom staple anymore, and examples that survived were well-loved (either in the wear-and-tear way, in the appreciation-of-objects way, or both).
The NES was only ~21 years old at the time that the PS3 came out.
kids these days... stares at the C64 in the corner
I am currently looking for some EDO sticks for a really well preserved IBM Aptiva I found on the side of the road. That stuff is expensive for a very different reason.
I am guessing the other side of this, the price drops will happen but slowly, and just like gas pricing, the profit is in rapid reaction to shortage and slow reaction to competition returning.
Chip pricing a sawtooth would make a LOT of money for somebody.