How do I disappoint her

I have been avoiding calling my mom for days. I know I am going to get the dreaded question "are you coming to the reunion?" I really hate to disappoint my mom and I know this will disappoint her very much especially since I have Dacoda home and I know everyone would like to see him.
Its really not because I don't have the money to go. If I wanted to go I could its really based on the fact I just don't want to go. I would rather spend our money on a trip to Kemah or New Branfuels(sp) then to go to yet another very boring event at the Robert Lee community building that has nothing to do but sit and look at people. Most the time everyone has there own little family clicks so we don't get spoken to much so I don't see why we would want to go an be ignored again this year. Also its just not the same without my grandma we loved to stay at grandmas and then I actually had time to visit with my grandma and my mother. Now I don't get to visit with my mom she is so busy trying to please her family and her family she gets to see once a year is put on the back burner. So, no I do not want to go to the reunion this year.
Actually I am upset with my mom on the fact that she can not make plans to come see her children. We all are located right here in the same area and she would be able to make plans to see and visit all three of her children but, my mom always has an excuse. I am tired of hearing the excuses really I am.