Why are classical solo cello LPs so expensive?


I am trying to collect cello LPs, mostly solo (like Bach's 6 cello suites) and sonata (Beethoven's, Brahams), and some concertos. But they all seem to be far more expensive than for other instruments.
Bach cello suites by Janos Starker seem to be one of the most expensive. DuPre's cello works are all priced high.

Is it a known fact that solo cello or cello sonata LPs are highly sought after and very expensive? If it is, any particular reason?
For me, most cello recordings sound so good with LPs, much better than CD recordings. I don't feel such on the piano or violin. Are most other people like me, which is why cello LPs are sold at high premium?
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The solo cello recordings on LP are in high demand from collectors in Japan, Korea and China, particularly the Bach. The Bach solo violin partitas are similarly in high demand, with further premiums for some artists.

The Starker box set of the Bach sonatas has commanded a premium from collectors for the past 30 years. Prices are down rather significantly since the release of the Speakers Corner reissue, but still in the several hundred US dollars range. Jacqueline Du Pre has always had a special following among collectors.
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Dear Rushton: Only for curiosity: how do you know or where do you read about that high demand from East land collectors?

Regards and enjoy th music.
Raul.
There is also a low supply in addition to the demand.

For example, I really want a copy of the Casals Bach solo cello suites (in a 50's or early 60's pressing) and I have not yet located one that wasn't in mediocre shape.

Still looking. I am certain to become one of those fools paying an obscene amount, no doubt!
Raul, this is what has been reported to me over the years by two different used classical music dealers from whom I regularly purchase LPs. It also matches what I see in the eBay auctions.
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