Hypothetical simulation...
MtGox database is corrupted. Will have to rely on backup data, that means that every transactions made since yesterday is gone. This will not change the current amount of Bitcoins or dollars in your account, but from a BTC price point of view, yesterday at backup time the price was at 112$/BTC, so that's the price BTC will be when databases are restored. Hopefully the DB will be restored today...
So, what do you think Gox answer will be?
A white screen with black text that reads,
"So long, and thanks for all the fish."