https://www.discogs.com/it/release/22564214-Norio-Maeda-NHK-SYMPHONY-ORCHESTRA-Rhapsody-On-The-Theme-Of-His-Majesty-King-Rama-IX-In-Commemoratio
That's just an offered side, and there have been no trades on discogs. Thus a meaningless number IMO.
I searched for the highest-priced CD currently on discogs and came up with this comedy 2-CD set:
https://www.discogs.com/release/7268972-Bo-Burnham-what
Another silly and meaningless offer.
That's nothing, "pharma bro" Martin Shkreli purchased an LP from The Wu-Tang Clan for $2 million.
https://www.reuters.com/world/us/us-sells-pharma-bro-shkrelis-unique-wu-tang-clan-album-2021-07-27/
Here's an example of dopiness on discogs:
https://www.discogs.com/sell/release/21801610
Two offers of an obscure release: one at $14.00, the other at $32,699.00.
And I find discogs pricing overall much superior to eBay and Amazon!