Beats by Dre started as Monster Beats, headphones that came out of a collaboration between stars of the rap and cable industries. While speakers may dominate your home entertainment setup, the world outside your door belongs to headphones. Monster Beats let people take all the music with them when they leave the house rather than leaving behind the highs and lows that ordinary headphones just can't reproduce.
eBay is a great place to find both the original Monster Beats and Beats by Dre, so you can enjoy the tones that lesser headphones leave behind. Don't trust your music to just anyone. Try the headphones that bring all the sound everywhere you go.