I think there are several different types of person buying vinyl records....and likely photographic film.
I grew up on vinyl and film....started using both at a very early age. Before I could read I had a collection of around 50 45rpm singles, I could identify them by the artwork on the labels and the pattern in the groove. Before I was six I could handle a vintage medium format folding camera, intuitively setting aperture, shutter and focus. All this by 1979....fast forward a decade and I'm now a teenager with a decent hi-fi system in my bedroom and later than some of my friends my first CD player. It's an expensive Marantz model, wheedled out of my parents by doing gardening, housework, Christmas money etc...£500 and 6kg of sexiness.....and I was disappointed. Sure, I could "hear" the lack of hiss or rumble but I knew something was missing. As a clasically trained musician I was probably missing harmonics...I still am not totally sure but every CD I tried sounded dead. Felt dead. In some cases I had the same material on LP and even with the relatively inexpensive turntable I had at the time I just couldn't listen to the CD. After spending two fruitless years trying to convince myself to "go digital" I gave up and bought a Systemdek IIx900 which I still have to this day. Indeed I have it's predecessor as my "office turntable" at work. And it's predecessor which was handed down by my dad now has pride of place in a close friend's house. People did think I was mad spending good money on a turntable in 1991. Who's laughing now?
So I never really stopped buying records. I noticed "vinyl" enter the lexicon partly via DJs where using vinyl rather than any digital source was seen as a badge of honour. Also I noted at a street food event locally last weekend there were two very middle aged DJs using Technics SL1200 decks, and with them box upon box of 45's from the 1970s onwards.....probably earning the most money in their long careers and certainly gaining huge respect for spinning actual vinyl. Indeed it is said that it was hip-hop and the need for real vinyl in clubs that kept many of the record presses going through the 90s and early 2000s. Not my music at all but a big thank you to those hip-hop DJs who kept the presses going.
Yes, you have the "hipster" generation who discovered vinyl as something new to them. It is said that many don't even play their records. And those who came back to vinly because of the preference for physical objects over the intangible.
Factor in the loudness wars and the fact that sometimes a vinyl LP is mastered completely differently to the CD and download/stream....and you have another audience for the LP.
As for nomenclature....I always called them records....at least once I was old enough to pronounce the word....when I was first taught how to use an autochanger I was too young and it came out "gakki". "Record" or "LP"....if one was being posh. "Vinyl" came in sometime around the turn of the decade 89/90 to distinguish between CD and records and it kind of stuck. It may well have been a DJ thing. False marketing and "wisdom" had it that CDs were better in every respect, when in fact all they really ever had going for them was convenience. I knew the tide was turning when my cousin visited with his kids, and I was looking for a specific record to reminisce over with my cousin....perhaps 2007? His then 10 year old son joined in the hunt "Oh vinyls....do you know they sound better than CDs?"
As for film photography....I note several friends and acquaintances dusting off old cameras and trying them again. My local camera shop sees lots of people doing the same, or youngsters who have found/been given a parent's old camera (old being anything from 50s to 90s) and want to try it. Crucially they are coming back to buy more film, and to have their film processed. I did stop film photography for about 3 years, and kind of forgot how much fun it is and how it can be more creative than digital. Also how it certainly has an individual look even if most of the time I scan rather than print. Seeing people out and about with film cameras does have an effect, more people want to try. That's why now is the time to advertise and raise awareness....people often ask me "where can I buy film?" and I point out two shops in the town centre that sell it....they're quite amazed....I might be out and about with a box camera and people assume it's not loaded "because surely you can't still get film for that?"......"Sir, I can still get film for my 1899 Folding Pocket Kodak. This is easy, I could buy some over the road".