Some things I've noticed about EBay and saw sellin.
On Ebay, Stihl rules the roost.
They often get close to list price for used saws.
I think that it is the lack of online distributors that make them in demand.
There is also, of course the perception, right or wrong, by MANY that Stihl is the best saw out there.
Also, I think, if you do a search for Husky, there are a plethora of dealers that are selling brand new saws, and of course, this cuts into the number of potential buyers that might otherwise look at used saws.
Regardless, the thing to do on Ebay is use it to your best advantage.
Use lots of pics, make sure the saw looks good, and clean, and even video is a big plus. I am absolutely convinced that good photos make a big difference.
Also, people love a new bar and chain. Even on a ten year old saw, if you throw a brand new shiny bar on it, people respond to that. Silly, but it is human nature.
Good luck to ya.