last year, when my fiance's brother got married, their uncles (two of their mother's brothers) rsvp ed for themselves, spouses, and children but then didnt come to the wedding. Needless to say, I am very reluctant to invite them because I am scared they will do this to me as well especially because the per- person fee from the bar and caterer for our wedding is going to amount to around $100/person. However, I feel like I am obligated to invite them because I dont want to offend my fiance's mother or grandmother I also worry that the uncles will not understand why they are being left out but it is a simple matter of about $200/ couple as we are not inviting children. So my question is: do I HAVE to invite them? Should I explain my reasoning with my future MIL?