With good reason. I wasn't poor until I got into this "hobby".
Don't I know the feeling!
I do have some film (about 100 rolls, plus sheet film and quickloads) in the fridge/freezer, but it's not hoarding...I don't live in a place where the films I like to shoot are readily available, and it's much cheaper to buy online (and internationally) which means buying in bulk in a variety of formats (35/120, colour/B&W) to make the best use of the shipping prices. That being said, I did buy some films (like HIE) and papers (for lith) once I found out that they had been discontinued (which usually happens right after I discover them).
My favorite thing is to go where I've never been. D. Arbus
... "And the [Ilford] price increase? Not a problem. In fact, I'm not even going to alter my purchasing cycles to try to "beat" it. I will simply continue to purchase what I need, when it's needed, at whatever price helps to provide for its continued availability.
"To do otherwise would be, I believe, both short-sighted AND truly shooting myself in the foot..."
Vinyl records and high end analog audio equipment thanks to MP3s
I hope that photography doesn't become like high-end audio equipment. I want to be able to afford to keep doing it.
Even though I stockpile film, I still buy film as I use it up. I try to use a FIFO system--as I pull older stock from the fridge, fresher stuff goes in, so that there's always a certain amount in there, and it doesn't get too old. I also don't see it as affecting the film market much: the film is out there, either I buy it, or someone else buys it, or no one buys it. If 1 or 2, eventually it will get used, if 3, then production will end that much sooner.
Other things which are "dying": Vinyl records and high end analog audio equipment thanks to MP3s, drawing and painting by hand since the arrival of the digitablet, classic cars are history now that the Volt has arrived, sculpting by hand is no more with the arrival of 3D printers, Home brewing of Beer now that canned beer has arrived, Chefs have gone the way of the dinosaur after frozen dinners introduced, fly fishing has died since factory fish farms have come on the scene. I could go on...
I have seen a lot of classic cars around where I live.