Just because you can get 99p earbuds that are cheap apple copies down the market DONT SHOOT THIS DOWN ;-)
There are very few good sources for B&O A8s other than a Bang store. They are currently £95 in the B&O store and I understand will be going up soon. You can't trust Ebay for these are there are way too many China copies out there that are total crap. BA selling these for £79 is a good £16 saving with free postage!
Bang & Olufsen A8 Headphones
Crafted from anodised aluminium and hard rubber, these high-quality earphones offer superior sound quality and comfort. Designed to adjust to the contours and curves of the ear, they virtually eliminate sound leakage.