Like i mentioned earlier i dont generally go for these extra warranties, as they are often not worth the money (ie you can generally but the product again for the same price, and there is the standard warranty that comes with the camera), and i may have just come across a good sales pitch.
But the main thing that sold it to me is that it covers accidental damage, and for up to 4 years I can claim vouchers for the full amount. So, if i were to accidentally (ahem) drop it out of the car while it is still covered I could just get a new camera (no extra or hidden charges to pay out) for the same value i paid, and in 4 years specs will have shot up, and prices come down. So, I may have been suckered into it, but in this instance it brings me great peace of mind.