With so many characters with bags full of salvage, it would take WAY too long to do any research at all on the lower level transmog pieces. I glance at the weapons to see if I might use them in any of my sets, but as for the rest I vendor all of them immediately.

I am certain that I'm throwing away thousands of gold, but you've got to prioritize. I'm more than content with the gold coming in from the 665 ilvl pieces I am vendoring.