as i said in another thread, on Vw's dealer calculator they use to show trade in values on used 2nd Hand GTi's , in the last 2 months alone, they have gone up £700 in value, due to short New build supply from the factory and everyones not selling!, putting up the value's!.
Hope it continues towards the release of the mk6 GTi, which or accoarding to My insider, prices of Mk5's wont alter much when the 6th gen comes out.