I have intentionally not invited anyone to Path because the value in it for me is a tiny tiny circle, and I don't really want to add anyone to it.
But I also check my Facebook and contact lists to see who has joined Path, and beyond the usual list of very early adopters, there's been no one new in months and months.
If I could import from Path (which must be possible, since there's a third party Path "app" for Mac desktops), I'd switch.