Both times were completely my fault. The cable was dangling on my desk, caught my chair, and as i turned around, the piece that connects the 'phone to the band broke. The sound still works fine, but hot glue only does so much. Anyway, it's now uncomfortable. This happened once with my first pair, and I just bought another RX700 to replace it. I'm really happy with the sound quality.
I have like $50-$75 to spend...should I go for my third pair of RX700's or should I venture into something else? I listen to rock music mainly (Beatles, Coldplay, etc) and loads of other bands.