I have GAP insurance on my mk 5 (as i bought it from new) and i have also gone for it for my on order mk 6. its defo worth it, particually if you right the car off (which hopefully no one will do!!) Threaten to go elsewhere for your GAP insurance - that's what I did and i ended up with the quoted £500 cover being given for free (they would have taken £500 off the car price and added the £500 back) - remember, the dealers earn massive commission on this type of extra so you can defo get it off them cheaper as they will just take it off the price of the car because they make nothing on the car but loads on the service plan, insurance, finance etc!