how does one figure out what to sell a pump for?

[Abengochea]

Ive got a genx pcx40 that Im not using anymore and was wondering what u guys think it should go for. Any suggestions?

 

[gasman059]

for me free lol, good rule of thumb is half d retail, and take it from there

 

[compulou]

Armando would you be willing to trade it? I'm actually going to post a generator I have that was never used and want to trade some stuff for it. LMK.

Lou