I am curious to what extent it actually has changed. I don't doubt you, but I didn't get into photography until 2005. Wasn't there always at least some underlying concern (perhaps one that would have amplified notably had the Internet been around) about sharpness, less grain, higher ISO, and such? After all, marketing definitely didn't just start in the past decade.
Back in the 1960s and 1970's, if you commited to buying a particular brand of SLR, you only had maybe 6-12 lenses of various focal lengths to choose from. Period. The selection was based on FL need, and perhaps max aperture. Yes, it mattered if a lens were sharp or not, but today is a virtual preoccupation with IQ, and it seems that FL is so often the LAST thing on the amateur photographer's mind! Overly concerned about quality, too little concern about getting a fantastic shot using the lens to is maximum potential to capture the photo the photographer is making! The emphasis of the average person is too little about making 'the shot'...only what matters is a noiseless and sharp photo (with crappy composition and exposure...the grey snow that we see on POTN proves that second point).




