I agree, it's all about where you sell to.
I had to take in 7# of insy wire like you sell to a yard that paid only 20 cents a pound for it, I told them they were full of scrap metalscrap metalscrap metalscrap metal since I was moving. Many yards will simply straight up rip you off on insulated wire.
If you're being paid ;ess than 75 cents a pound for your lowest grade insulated and I'd say put it on Ebay for most profit.