My dealer says he should be able to give me the same discount (usually around 9%) on either an A3 or a Golf but he does think the A3 S-Line may take a slight hit from the residual value because there are so many of them around and a well spec'd Golf VII will hold it's value slightly better. His opinion not mine. He certainly has a lot of used S-Line's for sale at the moment.
As far as my 'being retired' comment is concerned I agree that those of us who are purchasing our car with are own money are concerned we are all trying to get a good deal but the A3 is increasing become the company car to have where perhaps the best deal is not quite so important to the individual.
One of things I will miss most if I do decide to buy a Golf will be this forum. I have been a members for nearly 11 years and have always enjoyed the great exchange of view between the members. I suppose I could stay a member although probably with less to talk about.