So much depends upon it's potential for usability. Could you offer some info/search results to show some possible uses for 3h3? I sold a very similar, generic .us for $100, but have other 3char that have better characters that just get a few winks, from t2t.
Generic 3char .coms have a bit of a marketplace, but this hasn't currently extended to .net. For a generic char., 3h3.net is a reletively good one, IMO, and i would hold on to it in the "speculation" category.