DOH!!!! I'm disappointed for you. That is so awful to be looking forward to a big trip and have it fall apart.
I was in the airport yesterday with a layover in LAX. We kept overhearing stories of people stranded.
I've only had that happen once, but luckily it was on the trip home. My layover from CA was in Dallas and that airport had shut down completely at 1PM due to high winds and didn't start flights out again until the next day. So I was stuck in CA. Total insanity when you think about how many flights go through Dallas. At first, the airline was telling me it would be 4 days before I could get a flight home. But, after the dust settled, it ended up only being two days. "Only", lol.