What are the market trends in second hand vinyl these days, especially classic rock? I'd be interested to hear opinions. If I had to guess, I'd say two things would have depressed demand for original pressings: first, the many reissues now available, and second, a decline in demand from baby boomers who must by now have finished rebuilding their collections. But would that guess be wrong? Is classic vinyl as much in demand as ever, or even more so?