Getting back to the original question - I live in Sussex, and we first looked at the GTi about a year ago. Found all the dealers would not offer any discount whatsoever, not even on their demonstrators!
This surprised us, so we thought would leave for a while, until supply of the GTi's improved, and demand dropped.
Went back 12 months later, and situation hadn't changed!!! As VWmd has said, why on earth should they discount when they have people lining up for the cars? If people didn't want them at that price, they'd go elsewhere and demand would soon drop, but it hasn't.
This reassured us that the cars should hold their value well - we went and tried the Focus ST when it came out, which is no doubt a bargain, but I was amazed to find these cars being heavily discounted from day 1 through various websites. What it that going to do to thier residuals?
In the end we did manage to get one of our options for free, but feel satisfied that the cars are not being over-supplied, and we have not been ripped off.