+1 Informative if I had any mod points, but it's your last paragraph that's really the most salient.
Music listening is not measured only by fidelity to the original recording, there's a whole gestalt that makes taking an LP out of its sleeve, placing it on the turntable, putting the needle down, looking at the glowing bottles of outer space and the sleeve art, and actively paying attention a much different experience than having iTunes on shuffle while you code or do laundry or drive to work, even if your digital setup is instrument-measurably better-sounding.
Car analogy (SORRY): It's the difference between driving a beautiful but cranky old car that needs ignition points replaced every few months, and a brand-new, in-warranty, utterly reliable, utterly forgettable midrange sedan. If you just need to get to work and the grocery store you want the latter, but an overall interactive aesthetic experience is enhanced by the more intimate involvement with the former.