there are no takers except at absolutely give-away prices
That is the gamble and why it could be a good time to buy one. It would be one I'd be prepared to take if I had the cash now because you *could* end up with an aeroplane valued at significantly more than you paid for it....
I do a lot of flying at a Diamond factory training centre in the USA, and although they have had some downtime, mainly due to the geabox inspection requirement, it has not been horrific by any means. My mate runs it (and hence not trying to rip anyone off) and his advice is the above.