I bought a pair of bi-wired KEF Reference 104/2s based solely on reputation and reviews. I recognized the shipping address as very high-end Manhatten, but still I suppose it was a gamble. I love the speakers and have never regretted that gamble. If at some point the 104/2s become unrepairable, I'll look for a pair of Sophias or Sophia-2s. So I'd say buying used speakers entails some risk, but a worthwhile risk. I'm not as cavalier about selling and shipping as some who have posted on this thread, but then I've only been a buyer.
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