Multiple copies of the same album?


I’ve accumulated a lot of music in the last 4 decades, and I listen to music via LP, CD and hi-Rez audio. Among all that I only have a handful of titles for which I have copies in multiple formats- for instance, I have one recording in vinyl mono, vinyl stereo, CD and hi-Rez. 

For those of you that also listen across multiple formats are multi format versions a small part of your library or do you seem to have a lot of that in your library? 
zavato
@bdp24 - do you have Fahey’s ’67 version of Death Chants, Breakdowns & Military Waltzes?
BTW, your input would be valued here: https://forum.audiogon.com/discussions/rythmik-subwoofer
@elizabeth - so nice to see you posting again. I got bored with traditional and straight ahead jazz, warhorses, etc. A friend got me into spiritual jazz- check out something like the B side to the Heath Bros "Marchin’ On" on Strata East- a piece called "Smilin' Billy Suite"- it’s a combination of almost classical style with very deft woodwinds. The subgenre has opened a whole new area of listening for me and revived my interest in jazz.
I have multiple copies of rock Lp’s and Cd. Then I started buying the remastered versions, only to learn that the originals in most cases had better sound.
Then there’s the 1970’s, a great period in vinyl, when artists released the same album with different cover art. I have about 10 versions of Kate Bush’s "The Kick Inside." She has different packaging depending on country of origin, plus collectable limited runs.

Now, I search Discogs for the best quality vinyl and CD when I have a disappointing US pressing (the best is often from Germany).
I try not to buy on CD what I already have on vinyl,  but there are some exceptions. Beatles, Stones and Mingus come to mind. I also have multiple vinyl copies of Hendrix, some still sealed, to be opened only on special occasions...

Like a new turntable or a London Decca Supergold.