In the 90s I owned a Minolta camera, I shot 35mm slides. I would buy slide film, either 24 or 36 exposures to a roll. I would shoot the film, then I would pay for film processing. I became very good at composing each frame before I press the shutter button. Every shutter click had a film and processing cost. The first thing I learned about digital photography: pressing the shutter button did not cost a cent.