Unfrumped, it's so funny how as a trend sticks around, even if we initially don't care for it, we start to see how it could work for us. I've never been much of a fringe person, but I have been a little tempted by a piece or two. But I am now feeling the same way you are -- hesitant to buy in case the trend is really waning. I think in a case like this where it didn't feel much like "me" to begin with, it's a sign that I can pass on it so I won't feel like I wasted money when the trend dies out. If it's a trend that excites me from the beginning, chances are I'll continue to wear it even as the trend is passing (mixed media, bootcuts, etc.).
If that little round Target bag I posted came in a slightly larger size and maybe in grey, I would have pounced. It's just the right amount of fringe, and a really easy price point for a trendy piece.