I would say only the high end cover is worth it, but its really good if you do spend the extra cash as the lower end covers are reflective and would come up on a radar !
We've just launched our brand-new website selling tailored outdoor motorcycle covers for every make and model. Each cover is custom-made to fit your exact bike, 100% waterproof and built to handle UK weather all year round. Enjoy extended warranties, fast UK delivery and the option to pay in 3 with PayPal. Take a look and happy shopping!.