The Audio Technica 2005 USB mic is the first and so far only mic in its class to make it from our sales stock shelf to the rental inventory. And there are a few reasons for that.  The 2005 USB is a dynamic mic and can be plugged in to a Mac or PC via USB or an XLR cable to a mixer or recording interface.  That makes it diverse for professional use as well as podcasting.  Being a dynamic it makes finding a recording space more friendly as dynamic mics are less sensitive and to room reflections.  Being a handheld it doesn't necessarily require a shock mount or any type of stand especially if you're recording on the go.  We may add more USB mics in the future but for now, the AT 2005 USB is going to be it for now.