My second pair of these headphones, retail on average at £80. both times I bought in a sale. Think I would go for bose if I was to spend anywhere near their normal retail price just to see what difference there could be as these sound great.
Excellent sound quality and get good reviews around the web, check out review sites/youtube etc. Comfortable, sweatproof and never drop out when running. Not sure how long the offer will last on these.