Speakers like that were never about accurate imaging or wide sound stage. They were about pissing off the neighbors, giving yourself a coronary, and losing hearing. This was back in the era of cassette tapes, so they've got a frequency response closer to pro audio speakers than the more refined home audio gear of today.
They're horrible, but they're fun -- not unlike an MG roadster or a Totino's Party Pizza. If you want to listen to the Boston Pops, these are not the speakers you're looking for. But they'll play Def Leppard or Rob Base & DJ EZ Rock just fine. Those Cerwin Vegas are a fond part of the soundtrack of my life.
But no, I'm not interested in buying them.