Soundearphones.com is having 25% off all gift cards with no expiration date. They take paypal if you prefer that method. I got $250 to spend on new DJ headphones or good listening headphones for my father for his birthday. This is a fantastic deal that gizmodo just happened to have as well about a month and a half ago. If you're looking for great headphones (that aren't Beats) I'd like to recommend the following:
AIAIAI TMA-1 (These are also $170 until Monday on other websites) - $200
http://www.soundearphones.com/products/aiaiai-tma-1-headphones
Grado SR60i - $79 (incredible almost audiophile-grade, but not for extended use)
http://www.soundearphones.com/products/grado-sr60#.UK88m-Oe_1g
Sennheiser HD 25-1 II (you can find them for $200 on other websites, but the 25% off with the $250 GC makes it around $188) - $250
http://www.soundearphones.com/products/sennheiser-hd-25-1-ii-headphones#.UK88ouOe_1g
Sennheiser HD280 - $100
http://www.soundearphones.com/products/sennheiser-hd-280-headphones#.UK89K-Oe_1g
AIAIAI TMA-1 (These are also $170 until Monday on other websites) - $200
http://www.soundearphones.com/products/aiaiai-tma-1-headphones
Grado SR60i - $79 (incredible almost audiophile-grade, but not for extended use)
http://www.soundearphones.com/products/grado-sr60#.UK88m-Oe_1g
Sennheiser HD 25-1 II (you can find them for $200 on other websites, but the 25% off with the $250 GC makes it around $188) - $250
http://www.soundearphones.com/products/sennheiser-hd-25-1-ii-headphones#.UK88ouOe_1g
Sennheiser HD280 - $100
http://www.soundearphones.com/products/sennheiser-hd-280-headphones#.UK89K-Oe_1g