This is where we will always differ I'm afraid!
I just configured a Tig with the 2.0 TDI and DSG, and an S3 Sportback upto the same spec (I had to spec the Tig up to the S3's base spec, I then added options I'd choose like for like on each (audio upgrade etc.)), and the Tig came in at £42,375, while the S3 came in at £40,600.
In my mind here, you're paying ~£2,000 for a slightly higher place to put your bum (and more load space), and sacrificing power, excitement and cabin quality to boot.