Would you be upset or at least annoyed?

So I told my inlaws that we were not going to do down for Christmas because I was down there last year I said I would switch it back and forth between my family and his. At that time my DH and I weren't together but he just got back together in April. Well this is going to be his frist Christmas with our boys in over 4 years (military he was overseas or on training.) Well his mother and brother called him and said they want to go to Universal and want him to go but they plan on leaving the night of Christmas! Well they haven't said a word to me only talked to DH about this because they I would say no. I don't have a problem with going my problem is money. We aren't going to have much money to go. I am trying to save money so that I can get a car next year in March. I am just kind of annoyed that they still haven't mentioned anything to me and they still want him to go with or without his family. He has talked to me about this and said I am not going to do anything without you. He really wants to go though he missed the time we went to Disney and I ended up in labor last time so now I'm just stuck. I told him that I will not have much money and he said that's fine he is going to save up. Idk I'm just a little annoyed they haven't even said anything to me about it and are still pushing him to go with or without us.