What you are seeing on GunsAmerica and GunBroker are "asking" prices. That being said condition is everything in establishing price. Your pistol appears to have been pretty well used. I think that a high end would be about $500 for someone who really wanted it. .32's are not the hot item these days. What it comes down to in the end is what someone is willing to give you for it.
The photo below is of a .32 with a lot more original finish than yours and if I was willing to sell it I doubt that I could reasonably expect to get $1000. for it.