There has been a massive gulf in prices between used ones on the VW used car website.
I've always kept an eye on the prices of performance Golfs in dealerships as that's how I bought my VW's for years - picking up low mileage ex-showroom cars when the sales manager has to get shot of them under pressure from local management to keep stock levels at a certain point whilst also under pressure from VW to order another showroom car which they are obliged to do every so many months.
The cheapest Clubbie (non CSS) I've seen so far on VW approved used was a 3 door at a whisker under £27k before Xmas and around the same time Plymouth VW had a white 5 door for just over £27k. I don't think either hung around for long.
The dearest ones were around £40k so that's a massive variance!