The skull candy drop ins are more like speakers and less like headphones really
I hate headphones while riding, not comfy, can't hear, inconvenient. drop ins also have a mic for mobile phone and you can get inline mute/FF/skip for music.
If they last me 2 seasons its worth the 20-50$ for me but long term wouldn't mind a higher quality speaker solution
Im sure u could buy some micro speakers off the net and do it better cheaper than skull candy