I helped my uncle sell his airplane (Twin Comanche) and I hate to say it...it all came down to presentation. At first we had tried very simple pictures of the airplane (standard exterior, panel, seats etc) on the regular outlets such as Controller and Barnstormers. There were some responses but no serious buyers. In looking at ads that I found more attractive - they tended to be the ones that had the most pictures. We didn't want to pay for the additional photos (we were already paying for the 5 we had posted).
Instead I made a web page with more artful photos (cool head on shots and other photo angles you would see in a brochure). Wish I still had a copy of the page - you'd think we were selling a corporate jet. I would direct all inquiries from Barnstormers and Controller to the web site for additional photos and information. It sold within a month of setting up the site. (Had been over a year on Controller and Barnstormers)
Of course by that point my uncle had it priced pretty reasonably too, but I think the professional presentation gave the impression the airplane was worth more.
