the ones that are going for $10-12000 are sport 1000's, the yellow one is a sport classic mono posto, much rarer and sought after in that colour. A friend sold his just before the pandemic for $22000.
No Reserve: 2006 Ducati SportClassic Sport 1000
Bid for the chance to own a No Reserve: 2006 Ducati SportClassic Sport 1000 at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #81,073.
bringatrailer.com
Is that not a mono posto?