The guys that I know that sell to fur buyers say the buyer prefers unskinned animals. His reasoning is that he is an expert and you don't get that much more for skinning one. I think they said they get around $20 for a Coyote and about $75 for a Bobcat.
There is a fur buyer in Falls City Ne, which is about 15 mi. from me that everyone uses. When I get one I just drop it off to the kids that hunt them alot and they sell them. I guess if I get serious I should sell some. Gas money anyway.