For me It is hassle factor. I can sell the car more quickly and easily via a dealer. I don't have the pain of test pilots and arranging viewings or ensuring payment. I think a lot of Aero owners value the service our dealers provide in this respect.
Rich,
I agree,
Essentially what the dealer does to earn his commission/markup is filter out all the hassle and time wasters. (God knows, there are enough of them about!) plus give a warranty which makes the car attractive to a buyer.
From the buyer's point of view, it's that very simple old saying, " You pays your money and you takes your choice"
G
Cheers,