Two of my film distributors have told me that the 35mm film demand has more than doubled (!) in the last five years.
Global film backorders are currently in the 20-30 million units range, mainly colour film.
They (the distributors) have problems to get enough film from Kodak and Fujifilm, therefore some film types are regularly sold out in the shops.
Some film manufacturers are already producing 35mm in three shifts per day. But even that is not enough to keep up with demand. Kodak therefore has announced to increase their capacity by investing in new, additional machinery to increase production. Fujifilm is probably doing the same, as they also have problems to keep up with demand.
Therefore it is not surprising at all that prices of used film cameras are increasing, because the demand for them is increasing.
But Leica has said that also the demand for their new MP and M-A film models is strongly increasing.
Leica has also started to sell film in some of their Leica stores.
The film renaissance is huge. And not only driven by young photographers, but also by middle-agers who have a kind of "digital fatigue".
Concerning the film market, you find lots of interesting info - often including news from the companies themselves - at photrio. RFF is unfortunately often "out of touch" with what is really going on in the film community.