My wife's brother will probably need/want to sell his pair due to a move, so I peeked at eBay and saw typical sales prices of $600-800 and sometimes over $1000- combined with $150-200 in shipping. He hasn't played them in 20 years it seems like, but my nutshell memory of them is "loud, but rather crude". Fairly full bass, but not deep. (Maybe some of it was his CD collection.) They certainly didn't image in his room, which may have just been too small. They're also about as ugly as speakers come (garage specials) and many of the eBay models appeared to be pretty stained up. It would be wonderful if he could make something of a killing, but I was rather shocked. I'm guessing that the "loud 'n proud" and "sound from everywhere" aspects must be the key and that Bose looks to have moved on to a 601 series that flopped in comparison.