Hi, I'm wondering how much hi-fi technology has advanced in the last 8 - 15 years... would say a new, cheaper amp (maybe a Cambridge AUdio Azur 640 at 250 pounds) give, say, a Marantz PM66 SE KI SIG a run (400 retail back in 97) a run for its money. And how would both compare to say a Pioneer A400? (1990). How far have things have really advanced recently on all this front (or is it just a conspiracy from the manufacturers to encourage us to upgrade!!!). Without the facilities for A/B comparison, I'm feeling a little lost and am debating the new vs second hand market... any thoughts appreciated.