So I'll share my "good old days" story, prices included--and yes, they were good days indeed!
From 2002 to 2005, I lived in Atlanta, where the Wolf Cameras flagship store was located, on 14th Street. And we had (it's still in existence) Wings Camera, which sold all kinds of great film gear at excellent prices. (The proprietor explained to me that, at that time, many of his customers were doctors and dentists; so in his words, "They'll buy something and play with it for a few months, then bring it in and ask me to get whatever I can for it, they really don't care about the money." I took *full* advantage and bought lots of cool stuff, most of which I still have.)
When you walked into Wolf, on the right just inside the door was a big plastic trash can, sometimes two. Whenever the "professional" film expired, they'd send it back to the Atlanta branch to clear out. That waste basket was full of all kinds of film, usually for $1-$1.50 per roll. I'd go digging through it, pulling out all the Kodachrome, Provia, Astia (god, I loved that film), Portra, NPH, NPZ, Reala (another great film, RIP), etc. It was mostly 35mm, but once in a while they'd have 120 film and sometimes even 220 film in there.
And at that time, the pros were starting to dump film for digital, and so I was buying most of my medium format film, color at least, on eBay for pennies basically.
Oh, and did I mention I had a JOBO system I'd gotten for a very reasonable price? And you could still buy E-6 (I always used the Kodak six-bath process) and C-41 kits very inexpensively? I processed all my slide and negative film at home--and in those days, you could actually *take your Kodachrome to Wal-Mart*, they'd send it off to Dwayne's or someplace, and within 10 days you'd have it back, for less than five bucks.
As if all that wasn't great enough, I bought an excellent-condition Crown Graphic from Wings for about $250. When the 4x5 Polaroid expired, they would bring that back to Wolf, too, and stack it on a folding table. A box with 20 exposures worth of film back then cost $52-$55, depending on the film type; Wolf would clear it out for *$11.99 per box* after it expired. Whenever I saw some sitting there I was gonna walk out of the store with 5-6 boxes or more. And I made my money back and then some: I hung out downtown by Five Points and did street portraits, selling them for $3 or $4 per Polaroid. (If it was someone interesting, I'd take two, and discreetly keep the best one for myself.) People were amazed seeing the print when you peeled apart the holder (most film developed within a minute or less), and they sold like hotcakes. At the price I was getting the Polaroid for, I used that Crown Graphic like the world's biggest point-and-shoot.
Plus, I'd bought a house outside the city with a mother-in-law suite (with a bathroom for water) down in the basement. That became my luxurious darkroom. There was nothing better than sitting in the amber glow of the safelights, a glass of wine at hand, and Miles Davis or Beethoven coming through the speakers I'd run down through the ceiling, and printing all night or in the heat of the day (as the darkroom was in the lowest part of the house, the AC kept it *nice* and cool).
That was probably the most productive period I've ever had as a photographer. I was having *enormous* fun, too, while not having to spend much money at all on gear, chemicals, and film, and I knew that...it wasn't going to last. Sigh.