The problem is that nobody plays tapes any more and the tape drive makes the thing look old fashioned.
If it has a radial laser, B&O service will declare it obsolete, should it be necessary to send it to a service centre for repairs. As far as I am aware, the kit to replace the radial with a linear model is no longer available from B&O.
Obviously, they can still be serviced by enthusiasts but not everybody knows a suitably qualified person.
This all conspires to reduce the market prices, which will fall even lower with time.