Several years ago, I bought an old Polaroid Land camera at a flea market in Missouri. I knew literally nothing about the camera when I bought it, not even if I could still get film or batteries for it.
Luckily, when I got home and onto the Internet, I found The Land List, a complete repository of all things known about all of Polaroid's many land cameras. There I learned where to buy film and how to alter the camera body to take modern batteries. I've taken many wonderful shots with my $1 classic Polaroid camera and gotten much enjoyment out of it due to the free information I found on the Internet.
Recently I bought an Argus C3, an old 35mm camera affectionately called "The Brick" by photographers due to its blocky shape and heavy weight. Since the camera was so old, I needed to know what kind of maintenance I could do on it and how to do it. Once again, I found the answers online at the Argus Collectors Group website. The camera can be almost entirely disassembled and serviced, and I found wonderfully detailed exploded diagrams and instructions.
My latest camera purchase was a Yashica Electro 35 GSN. This is another classic 35mm film camera, and there's a wealth of information about its care and feeding available at a website called Yashica Guy.
You've probably switched to digital photography; nearly everyone has these days. But if you've got an old camera up in your attic, you can probably find online everything you need to know about finding film and batteries for it, as well as fixing and using it.
And don't forget that you don't even have to get prints; most labs will happily do only developing and scanning without making you pay for prints, so all you have to take home is your negatives and a CD!
Film photography can be a wonderful and inexpensive hobby!