pair of 2.4s at audio consultants until they close forever on 12/21. They're listed at 1700 but I think the extra 25% off on the front page puts them at $1,275. An obscene deal for what you're getting. Makes me wish I needed more speakers.
http://audioconsultants.com/UsedEquipment.aspx
http://audioconsultants.com/UsedEquipment.aspx