"High-definition" is a meaningless term; or, more accurately, it means whatever anyone wants it to mean.
(In digital audio, most folks take it to mean "more resolution than a CD" - although some few vendors consider CDs to be high-res.)
Vinyl is certainly able to reproduce frequencies up to around 50 kHz or so - although it really is sort of shaky up near the top of that range.
(Cd4 records used a subcarrier that extended above 50 kHz, recorded onto vinyl, and played back by a diamond.... but the super high frequency parts tended to be rather noisy and to actually wear off eventually).
Vinyl is never going to match the resolution of digital - simply because there is no limit on digital.
If you don't think CDs, which use a 44.1k sample rate, and top out at 22 kHz, are "high-enough definition", then just jump up to 96k.
And, if the 45 kHz you can record at a 96k sample rate isn't good enough for you, then go to 192k... or 384k... or whatever you like.
Likewise, the S/N of a CD, which is 16 bits, exceeds the best vinyl can deliver.
And, if that isn't enough, you can go up to 24 bits, and get a S/N in the high 130's...
Or go to 32 bits, which has a theoretical S/N that is truly absurd...
In order to make vinyl significantly quieter, or handle significantly higher frequencies, you'd have to change the rotational speed, and/or use something other than vinyl.
And, face it, a good DAC has a THD spec of 0.003% or so; even though you may not find it objectionable, the distortion on vinyl is orders of magnitude higher.
Vinyl is really lucky if it can deliver THD under a few tenths of a percent... on a good day...
I have to admit that, when I was younger, my feelings about vinyl were more mixed.
I sort of enjoyed the ritual of taking out the record, cleaning it, carefully putting the needle down on the record, and all the rest.
And a turntable, as a piece of equipment (like a nice watch), was fun in and of itself.
However, I always found the surface noise, and the occasional tick, to be a continual distraction.
I would flinch when I heard that first tick... and then, for the rest of the album, I'd be holding onto the arms of my chair hoping it wouldn't happen again.
OK, that's a slight exaggeration, but I really hated ticks and scratches and, whenever I put an old favorite record on the turntable, I really did worry that it might have acquired a new scratch or tick.
And every album had to be cleaned before being played, then shot with the Zero-stat, then cleaned again before being put back in the sleeve... being extra careful not to leave any dust that might get ground into it in storage.
I also frequently bought duplicate copies of really favorite albums - just in case my first copy got a scratch or became noisy.
As I've grown older, and perhaps not more patient, I've found the benefits of digital audio far more compelling.
For one thing, DACs are a lot better than those early ones, so any complaints I may have had about the sound quality of digital recordings are long gone.
For another, as someone with a lot of background in computers, I very much appreciate the ability to ABSOLUTELY store, retrieve, duplicate, and transport digital files.
I always worried that my favorite album would wear over time, or that two copies might be slightly different; with digital files I can confirm, with absolute 100% certainty, that they remain EXACTLY the same every time I play them.
I can make backup copies, I can test them to confirm that they haven't changed, and I no longer have to worry that they'll wear out, or that two different copies of the same file will be anything other than identical.
In fact, unlike with vinyl, if I do hear a tick, I KNOW it must be due to a bit of line noise, or a tiny glitch in my current DAC, because I KNOW that the file itself is safe from harm (because I have checksums and backup copies).
As I said, we each interpret the various parts of the process differently.
Trey considers: "getting it [the music] off the vinyl is the interesting part".
To me, that's: "a complicated uphill battle, that nobody's got entirely right so far, and that seems unlikely to ever be gotten 100% right".
(And, while neither the analog nor digital data is perfect to begin with, the digital data seems to be getting much closer lately as well.)
I guess I've gotten too old for "interesting"; nowadays I just want "works perfectly when I push the button".
Vinyl is already HD. There are groove modulations that must be measured in Angstroms. The material is there, getting it off the vinyl is the interesting part.
Trey