I have a SIG Carru Scorpion 1911 w/threaded barrel Im looking to trade in local. However the shop Im going to has a history of lowballing. They charged me $1100 out the door for it. What should I expect on trade in price? Its been babied, around 8 months old. Not a single nick or scratch, around 1500 rounds through it so there is so wear marks from normal operation (barrel hood wear etc.). Never carried or kydexed.

find the lowest price out there for a new one first. it doesnt matter what you paid its what one can be had for now. after that knock off a little for just being used.
I think I saw one new for 960.00 a few days ago but that may have been the 5 inch version.

Pistol worth is hard to guess.  I picked up a scorpion carry this summer that was like new with 1000 less rounds through it than yours for $750.  Mine did not have a threaded barrel though.  David

Got 750 trade in out of it. New acquire is FNH FNX tatical.