Buy them? You mean second hand? These aren't exactly current line. I see reviews from 2011. Back then, they went for $2000/pr speakers. So I guess it depends on how much you are looking to spend on them, and b) do you realize that these aren't the most accurate speakers:
Test Bench Tower Sensitivity: 88.5 dB from 500 Hz to 2 kHz Center Sensitivity: 89 dB from 500 Hz to 2 kHz Elevation Module Sensitivity: 84.5 dB from 500 Hz to 2 kHz
www.soundandvision.com
Having amps built into speakers isn't necessarily a sin, assuming it's done correctly, like in studio monitors