Good Enough To Frame?

As soon as I finish a drawing, trying to decide what to do with it is usually not that simple of a process. Since most of my art is drawing nowadays, putting a piece of paper away is a lot easier than stashing canvas.  I finished a 4-panel drawing recently and a friend asked if I was going to frame it and only then did I really think about the question as to what is good enough to frame.  For the most part, I think it's a subjective filter that gets applied, one that I admit could be as arbitrary as how I'm feeling that day when I make the decision.  The good thing about framing drawings is the fact that it's not permanent.  Should I change my mind at some point, it's easy enough to replace.  So I went through my storage closet and pulled all the drawings that I had framed over the years but haven't had enough courage to hang on my walls.  As typical with my indecision, good enough to frame doesn't necessarily mean good enough to hang.