They seem to go for abt $4-600. I recently sold mine to a friend of 40+ years for $300 with the condition that I had first dibs if he ever wanted to sell them. I think they are great speakers for the price. I replaced them with a pair of Basszillas which cost me almost $2K to complete. In comparisons, the Basszillas were a little bit clearer and the Straight 8s had a bigger (read better) soundstage. Had no trouble driving the Straight 8s to very loud levels with 300B amps.
I think at least once a week of building another pair with a more rigid box to see if that would let them match the Basszillas.
Hope that helps.
