I think it's not just "the younger generation's obsession with nostalgia and retro goods". I'm sure a lot of the iPad set sees everyone having x-hundred of songs to carry around, streaming Wi-Fi, etc. and they think, "meh, this is too mainstream and boring now". So after a lot of people buy TT's and records and that starts to feel ho-hum, they'll move on to the next cool thing. Maybe it'll be R-to-R, or back to cassettes, or a chip implant where all you have to do is think of the track and artist you want to hear...