I had a recent shocker with auto parts.
At an estate auction in July, I scored a 5 gallon bucket of tail light lenses from both Corvairs and Impalas. I immediately spied the '62 Impala tail lights, since the '62 is one of my favorite cars.
I went home, thrilled to have found them. They had an inch of dust and dirt on them, indicating they had been in the barn for quite some time. Back in the day, tail light lenses were like gold.
I got several lenses cleaned up, and then looked them up on ebay, thinking I had scored enough to pay for a vacation....and then learned that the bottom has fallen out of the market. Seems that most of the lenses are being re-popped, and prices for those are cheap, relatively speaking. The last that I had heard, the only re-pops were for ultra popular cars, like the '69 Camaro, but they were astronomically priced, at $275 per side.
So, my $5 find that I thought was gold is pretty much worthless. Disappointing, to say the least.
I reckon that is what happens when you stray away from a genre...the whole market can change while you are gone!!!!