List prices are only half the story. When I bought my GT TDi back in 2004 I got about £1,400 discount going through Drive The Deal.
Just run a quote for a Mk7.5 same spec (or as close as dammit), and the discount is over £4.5k. More than 3 times the discount. It's about £3k or 20% more than I paid 14 years ago, but includes things that mine didn’t have, such as sat nav, cruise control, multi-function steering wheel, rear privacy glass, parking sensors etc.
So I don't think we're doing all that badly to be fair.