I don't blame you. What reason are you given for the delay, beyond Marfan? Is it an issue with the insurance? My understanding is that 5.0 is the line in the sand. If your doctor is saying 5.5, I'd ask him why. I wouldn't go on a vacation either. I don't plan to get on an airplane again. I hate flying anyway and this makes a good excuse. Let us know how things progress for your husband.