Not sure if this deal is nationwide, but they had about 20 packs of them at Stafford. Marked at £99.98 but with `take home today 15% off` sticker on and priced at £84.48. It went through the til at £99.99 but I pointed out their sticker and they said their systems hadn't updated the prices yet.
Good quality and would be in excess of £200 for the pair and bag if bought separately. :-)
Feel free to edit post to put in links, I don't know how to.