I only buy a new car when it offers something new and interesting. I bought my Mk5 for the fantastic DSG gearbox.
My next car will be an electric one with a a diesel or petrol engine just to charge the batteries or provide power to the electric motors, like the Vauxhall Ampera. (But not the Vauxhall as I hate Vauxhalls since the horrid Vectra).
This new VW is a bit old hat really.