Not sure the monetary value would be that high, but as a collectors item it is very unusual to say the least as I never heard of a Lepidoptera with three antennae before, it would be a freak indeed and perhaps of scientific value ? Of course the skeptics might say perhaps a little glue might be have been bought into play. Three antennae would have probably have caused the moth some navigation problems. It is one of the commonest noctuids. When running an MV light trap on cold nights I got very little else except this species when it was on the wing.