I rarely listen to music on the move as I like to be aware of what's going on around me, but I did buy a pair of Sennheiser CX300 II's a year or two back.
I hated the sound, but worse, I hated the invasion of my bodily privacy - nasty things stuffed in your ear! So I bought a pair of Sony whatever in-ears for £9-99 from HMV and absolutely bril!
Hey Clare, How are the sales for WHF magazine (and digital download version) doing in 2011 compared to 2010? Well I hope, if so perhaps more people are thinking about hi-fi than buying right now.
Increasing headphone sales makes perfect sense to me. You can achieve a higher quality audio for less money (compared to separates). You can listen without annoying your neighbours (or conveniently ignore your loved ones 😛). Also getting high quality audio from computers and even portables gets easier all the time and headphones are the easiest way to appreciate that convenience.