One thing is that higher end 'desirable Sony' gear from the 80's is still desirable and fetches decent money on the used market. It still looks good to this day and when I worked at Mastercare there was an early (aluminium and glass) Sony CD player in the duplication room. When Mastercare closed the first thing to be 'procured' was that CD player - not any of the more modern stuff.
Then again I have not gone in for the new-tech race and only buy modern white goods, not AV equipment. There is just no passion in the designs any more.