You really DO NOT want to find a 'cheap pair' of Beats headphones!! If you do, they are most definitely black market....you know, knock offs or copies.......when you buy this stuff, you are only helping black marketeers make more money, which then goes to the mob or even terrorist organizations.......PLEASE..save up your money and get the real ones!! It will be well worth it, & you'll enjoy them much, much more by knowing you didn't support the 'underground' economy, and MORE importantly that you gave your money to the people who make them!!!
Buying a different brand and not being a slave to consumerism is the only way to get less expensive but still good quality headphones. I would try Sony or Panasonic. I'm using Skullcandy right now and they sound great.