For the sheer pleasure to listen and use different edition of a certain records you love. For a record collector this is inescapable.
You can of course have and play as many versions as you wish with digital files, and if ultimate sound quality isn’t important tomyou then online streaming (as opposed to from your own collection) may give you access to many more versions.
Of course, for a record collector (as opposed to recording collector) you need records, and their sleeves that come with them are a fundamental part, ditto for a CD collector, though the sleeve notes are a poor second compared to LP, often barely readable. With the ND555 (or any other streaming solution) you can, at least potentially, access sleeve images/notes on whatever screen you use, though the convenience and readability varies considerably. The problem is, (or rather was, as it is a while since I used it, though I don’t recall others saying it has changed), the Naim app it did not give access to sleeve notes held on my NAS (scans of LP or CD sleeves), other than showing the front cover image, instead using a third party online resource called Rovi, which did not provide the original sleeve notes, instead providing other info about the album and artist - and did not have all my albums in its database so was not much use. Some on this forum advocate Roon for its info, but when I tried it I found it also didn’t come up with original sleeve notes, at least not readily, and didn’t recognise everything, so not a substitute for the real thing.
Why on earth can’t streamer manufacturers like Naim provide a means of displaying saved images of sleeve notes etc from within the control app? Naim please note! (And apologies if this is an outdated complaint, with it now implemented effectively.)