If you have something and someone else wants it enough, they'll pay the asking price.
As far as these low milage, so called mint condition bikes are concerned, though. what do you want the bike for?
If you want to just look at it, or even keep it as an investment, fine, but if you want to ride it I'd go for one that's seen a bit more use. If you don't ride it, seals are more likely to harden, contacts still corrode and the top end hardly ever sees oil.
Mine's regularly cleaned and serviced, and runs perfectly, but it's approaching 50K, which is "average" for a 13 year old bike, so I'd never get these prices for it, no matter how good it is. But that's the point, it's a bike for riding, not a museum piece.