It takes about 10 minutes to take a single 4x5 photo, and you have to carry around a tripod and a fairly bulky camera to do it. So the time and effort invested in taking the photo is similar to the time and effort required to develop and scan the negative.
In contrast, a 35mm camera is very convenient and you can expose an entire 30 frame roll of film in a few minutes. But getting high quality scans of all those frames requires either a lot of time or a lot of money. (Consumer flatbeds give poor results for 35mm, so your best bet is putting the negative on a light table and using a digital camera and macro lens. But that’s a physically fiddly process, the ‘scan’ needs manual spotting for dust, and if you’re shooting color negatives you also have to do some work to get the colors right.)
Back in the day, most users of 35mm cameras were satisfied with waiting a week to get a set of prints with absolutely no creative control over the printing process, but that’s not what most people want now.
In contrast, a 35mm camera is very convenient and you can expose an entire 30 frame roll of film in a few minutes. But getting high quality scans of all those frames requires either a lot of time or a lot of money. (Consumer flatbeds give poor results for 35mm, so your best bet is putting the negative on a light table and using a digital camera and macro lens. But that’s a physically fiddly process, the ‘scan’ needs manual spotting for dust, and if you’re shooting color negatives you also have to do some work to get the colors right.)
Back in the day, most users of 35mm cameras were satisfied with waiting a week to get a set of prints with absolutely no creative control over the printing process, but that’s not what most people want now.