I'm using a new HK$299 earphone today. I don't really mind the quality of sound most importantly it must be firmly held on my ear while I run. This one with a hook has a slight problem, i.e. the hook will transmit vibration into my ear so I can hear my breathe and steps while I run. This is better than the old one with hook on ear which easily becomes loose while I run.
Nike+ 4.19k, time 31:21, pace 7:28, A/MHR = 151/162, score 60%