I think the latest offerings by VSonic closes the gap, and that you don't need to pay over $100 to get the same sound. The VSD1S is very close to the GR07 and can be worn cable down, as well as around ear (though the channels will be swapped). It also avoids the sibilance that I hear on some songs. The cable on the VSD1S are thinner than GR07BE, but the GR07BE has way more accessories (the colorful silicone tips are great).
I am very interested in which VSD3 version is the better one and get it later this year.
It seems that the regular VSD3 sound better than the VSD3S when compared to the GR07 based on reviews so far, but you ever know.