Where is best place to buy / sell 200 cup?

It is going to be a sad day, but I will probably have to sell my 200 Cup within the next two months. We are moving soon. Teenagers getting cars. Not enough space etc.
Where do enthusiasts look tio buy/sell these days? Pistonheads? I thought here would be the obvious place , but Classifieds don't look very active, and membership process looks suspiciously spammy.