I will give you £10k lol.

Seriously from what i have seen people that over value their cars just end up reducing the price hugely when they get desperate. Just look in the classifieds on this site, P/X was so low the fella sold it privately. Price came down and down untill it sold for £12k.
Of course the desired spec cars will always hold their value better thats just obvious car sales 101. What i cant understand is how last month on Autofinder you could get a 5 door dsg with a few bits 15k miles for £15,995 from a VW dealer. Pistonlegs had loads around the £14k mark with rns510. Now for same spec cars you looking at £17,995.
As i said before this is great news for owners so i am honestly pleased you the owners out there but i am just trying to understand what happened in a month. VAT is set to rise but thats not untill next year that is bound to have an affect on used prices (for the better). I could also understand if the rise was across the used car sector like it was 6 months to a year ago but i can only see it in the Ed30.
The only thing i have seen is a few private sellers over valueing their cars then the dealers following suit. Now looking at it from a buyers point of view and in an ideal world, no one would buy at those over inflated prices and they would come down to their natural level again. However as the Ed is a lovely piece of kit some just want to get their hands on it and a choice between an £18k car from VW or an £18k private sale is an easy one. This will in turn lead to private sellers having to reduce their cars greatly to pick up sales and that will then force the dealers to reconsider their prices but not for a few months and not before stealers have cleaned up.
Just my 2p worth.