As others have said you need to do what is right for you and your family. Personally, I believe that my time is already set in stone, that my choices will lead me there and that I can't do anything to stop it. The way I look at things, I am not even guaranteed my next breath. So I would go because it was such a special family occassion, one that can never be revisited. Maybe writing a pro and con list will help to perhaps take out some of the emotions and allow you to look at it more logically.