Wow what a great summary... similar to the whole sneaker thing...except when it went to step 6, the companies realised it was like a licence to print money and did 2 things, flooded the market with cheap garbage crap, and also release super limited crap that sent people that didn't even know what a sneaker was into a frenzy of mega spending and it just doesn't seem to stop, we all thought it would be over years ago, but it seems to be getting even bigger (and stupider).
As to retrobike-ing I do love the old bikes, but it is more that there are certain bikes that I dreamed of having back then (early to mid 90's), but honestly it is not exactly that exact bike. If GT would have sold me one of the new Xizangs last year, I would have bought one, I am very very happy with my Zaskar reissue, my ARC may not be the same one as the grey/turquoise one I saw in the mags back in '92, but the day I got it in 04 was a happy happy day.
Sure I would like the most "authentic" bike I can get out of the ones I dreamed of and usually that means an old bike due to the company disappearing or some major change (eg Klein->Trek), but if Chris Chance was still build bikes, I would happily be riding a Yo Eddy with Discs and a 4in fork and 2x10 (just so long as i could get it with 26 wheels)...because well I like that hopefully isn't going to explode into bits.
I loved my old DB axis TR, fit me perfectly and handled well, but after 16 years of use, i had changed all the parts to much more recent bits as the broke or I deemed them well used. But in the end the frame was just feeling tired, so I gave it to a friend who needed something for light duties.
I really do wish that some of the companies would re-issue some parts (more than flights and smokes) as I would really like to be able to put on say some brand new M900 bits or mag 21's or M4's, rather than some old bit that is possibly clapped out, but you don't know till you have bought it.