My friend sold one in fair+ condition recently on Craigslist for $2200 and he had about 12 emails the first day. So the demand is there...
Fish Tales is an awesome game. It is fast and fun. I have been watching prices for a long time before finally buying mine and in Central/Northern California they seem to be going up in price and sell FAST. A very nice one just sold on craigslist that was listed at $3000 I am not sure what it actually sold for though.
One sold for $2400 a month ago that I went and looked at and it wasn't in great condition.
Fish Tales in the Bay Area sell FAST!
It is a fun game that belongs in any collection. They are undervalued and have high demand.