Torus.com sold back in 2010 for $6,801 and Monday it traded again. This time for more than 4x the last time, $28,500. Both times it transacted at NameJet.
In geometry, a torus is a surface of revolution generated by revolving a circle in three-dimensional space about an axis that is coplanar with the circle. If the axis of revolution does not touch the circle, the surface has a ring shape and is called a torus of revolution. Wikipedia.
Will be interesting to see what is done with the domain.