First, the good news: I finally made it home Saturday night at 11 pm. However, it sure was foggy on approach. So some assumptions that I made about the weather, upon hearing local reports, didn't take into account the visability.

But thanks so much for the explanations here. These, along with conversations with folks that have ILS technical knowledge have really helped me understand why the cancellations occurred. Maybe I haven't liked it, but there is no conspiracy!