What big mistakes do they make when looking at a car themselves then ?, If they come to me for the same car your trying to look for, it wouldn't be a mistake would it as they have what they wanted in the first place . If they wanted an Audi S3 from you and went and bought Ford Fiesta ST instead then that shows how unstable they were in the first place .
You obviously make it work after 15 yrs and bloody good luck to you as well as you deserve the deals after searching for their requirements , I just think those sort of customers expect me to find it , clean it , service it , present it, stump up the cash , price it less than mkt , ring them up for them to say " Sorry i changed my mind I now want a black one " and thats why its a Deposit in my books .