I di not read all responses, but in my opinion you need to weigh the good you believe you'll get out of the entire cruise against the bad, in this case the bad might be shows not as good as you'd like taking also into consideration the price of the cruise and ports. I think you would be the only ones who can decide if it's worth it to you. I wish you the best in your decision. Whatever that is be happy with it, move on, and enjoy life.