Steve,
I've already posted this on another thread, but I just PX'd mine for 10k - as you say, laughable. I am the second owner, it was registered in June 2002, 3500 miles.
I've been told that Audi dealers are struggling to register the number of cars required of them by Audi, so they really don't want any nearly new stock to stop people buying new - unless they can make a big enough margin on the nearly new stock presumably!
Interestingly, all the extras on my car made no difference to the value. They reckon even if it was diesel the PX would not have been much more.
If you do a used car search on the audi web site, most dealers have petrol and diesel A2's available, but it's very hard to find any other audi model with a diesel engine.
I was thinking of changing my petrol for a diesel A2, but I decided to get out of the Audi camp once and for all.
Out of interest, I bought a new A6 1.8T 3 years ago for about £22.5k - at 2 years old when I wanted to change it, it was worth about £10. I nearly got out of Audi then, but decided I liked the whole experience. I've now changed my mind!
Hope your problems get sorted out.
MartinW - Dolphin Grey 1.4SE