I like to see their facial expressions afterwards when signing for the vehicle.
Some look very ecstatic about their purchases while others have that bewildered ‘What did I just do’ look . You know the kind...like waking up with a hang over and you say to yourself 'oh my...how much did I spend last night'? I guess the atmosphere (cameras, drinks and a little vanity) is setup like that purposely. Sort of like the comps, gambling tables and atmosphere at Atlantic City. Otherwise they show some beautiful cars.
On another note considering the short review time for a potential buyer to look a car over I wonder how many people bid on these cars with little or no knowledge and if they are real or fake (in the cases of authentic) and what recourse, if any, they would have if the latter was discovered at a later time.