I assume you're after in-ear canalphones?
I've had a few sets now;
First were a set of Koss Sparkplugs, about $20 posted from ebay. They were pretty awkward, hard to get in your ear and stay there but sound quality was decent. Unfortunately the cable quality was poor and they eventually snapped at the speaker end after a few months.
Next up were Sennheiser CX-300 II's. Nice finish, comfortable to wear and pretty good sound quality too, but from memory they retail for about $100. Sadly they broke after a few weeks, no snappage or anything but one day they lost all volume, got really hissy in one channel and lost all sound quality.
I decided to try the budget end with some $15 TDK in ears, they weren't as comfortable as the CX's and lacked the sound quality but for $15 I figured I couldn't go wrong. I was mistaken. Took a day and a half until the cable shat itself and refused to carry a signal.
Right now I've got a set of Sennheiser CX-200's, cost me $70 from JB-Hifi. They seem to be pretty much on par with the CX-300's, just a lower end finish. So far they've lasted about a month, in that time the outer cable to the left speaker has frayed, as has the outer to the connection jack. Bit of electrical tape has fixed 'em for now, but I'm not sure how much longer they'll last.
From what I've read on here and various other audio forums, Skullcandy stuff is overpriced, overhyped crap, with fancy graphics but zero sound quality.
I'd love to hear from someone who's particularly harsh on their headphones which type of in-ear style ones are more durable? $70 for something that lasts a couple of months at best seems a bit rediculous..