The whole ship sales thingy has been a pet peeve of mine ever since it came about.
It's about as RP as code camping. And it's been like that from it's inception.
Because ship resale prices are dismal ingame, players try to recoup their losses should they need/want to sell their ships. So you get situations with players selling a house military warship on the open market. Kind of odd, really.
Ideally ship and equipment sales should follow some sort of RP: Corsair player sell his BS to a Corsair faction or to another Corsair indy. The Liberty dread owner sells his cap 6 to another Liberty Naval player or to the representative faction, and so on.
Enforcing RP in the Open Market is another thing. It hasn't drawn much admin or moderator attention thus far.
Personally, I take the on/off approach on this matter: either sales are to be conducted in the spirit of RP or no more open market.
P.S. Ship/equipment resale value could be increased to 80% of original price.