A couple months ago I sold Interface.net: $12,500.
Last year, Dose.net: $8k, Derma.net: $14k, Kernel.net: $20k, Vertex.net: $25k, Spring.net: $100k and Super.net: $150k
That's over a 3% STR for my .nets
(I declined $100k for True.net and $58,500 for Superior.net)