tunalegs
Pretended Artist
After an initial near collapse when digital came along, I have watched film camera prices, particularly for the collectible gear, rise and fall several times over the last 20 years. It is economy dependent to some extent.
Right now however, I think prices are on the rise. The economy is one reason, another I think is that fact that new film camera and lens production is close to nil.
I don't know, I've noticed some prices have been trending downward. There are a lot of bubbles that ride on internet hype. Once people lose interest, the bubble deflates. I see this a lot with vintage lens prices. Some lens will get internet hype (blog posts, forum threads, videos, etc.) prices will climb for a year or two, and then start to fall. Either because people have moved on to the next magical old lens, or because the few people bidding them up to absurd prices finally all got what they want, and now the rest are left for everybody else. And it is never a lens which is actually rare, only something which is just uncommon enough that supply is limited, but never rare enough to be unobtainable online for more than a few days or weeks at the most.
I remember about 8 to 9 years ago when the Diana camera bubble reached its peak and people were bidding old plastic toy cameras up to $150-$200 on ebay. Now you can find them all day long for $20, often ending without bids.
A lot of old stuff is still practically worthless. But we don't notice how worthless it is because nobody is hyping it up on the internet, so nobody is searching for it on ebay.