So it sounds like at least a few of us are rationalizing this by finding fault with the DAC
inside iDevices. I hang out here a fair amount of time and I hardly ever see anyone griping about the quality of (music) sound that comes of out iDevices. I do see an abundance of arguments of how people have embraced iTunes media over better quality sources because they "can't hear the difference." So it seems we can rationalize both lower quality or higher quality when it serves whatever argument we want to make? Lower quality iTunes music is "good enough" that I can't hear the difference AND we need to embrace a narrow proprietary new hardware standard so that off-board DACs can deliver a higher quality of sound than what is possible within iDevices???
Thus, we can rationalize spending $300 on new headphones with a proprietary jack that will only work with very select Apple products (not including Apple Macs) and if we also need headphones when we're using Macs or anything else, we can either own (and carry) a second pair or maybe an adapter.
Sounds great!