I think $xx would be a range for a more probably sell. Although if you have or find a clue of someone could be really interested, then of course speculate with a higher amount to see what happen. Anyway, without any clue of someone could be really interested, I think a sell for a higher amount is possible but less probably and not sure, maybe you sell it, maybe not.
"free chinese" has 260 global exact searches (not much) plus the .net took it down
Also I think for a more probably sell, you should look for potential interested people and offer it instead of hoping someday someone could contact you interested in the domain.
IMHO
Good luck