They are sold second hand between 250€ and 350€ in France. It all depends on if there are plug ins with, and sometimes what version is sold...
b.e., a pulsar II+/AES-EBU goes at 250€ and a Pulsar II/s/p-dif at 300€, which is a little funny because the "+" were more expensives.
In fact, I'm thinking ...