Prices/values are on the rise after a period of free fall. I bought an M3 Leica back in the mid 1980's at first it's value drpped because of digital but it's now worth more than I paid.
Way back in the 1990's an article in the BJP predict that the value of film cameras would drop drastically and few new film cameras would be made because there would be a surplus of second hand cmaers etc in excellent condition.
However we are now probably at or past the tipping point and the most desirable film cameras are increasing in value. So my M3 is now worth more than when I bought it.
Not all cameras and models have risen but they will.