Irritated with a friend about her wedding decisions....?

My friend is having a HUGH glamorous wedding this is her SECOND wedding. which is fine, sometimes it takes 2 tries i get that but. she has 4 children and before was always worried about how she would have money to feed them!. now with her new man who shes only been with for less then a year. she is having her bridesmaids buy $250 DRESSES?!?!?! shes very young and her Bmaids work in the mall , she knows they dont have the money for that, but she says things like. this is my big wedding this is my Real wedding, PLZ PLZ PLZ! i think its totally rude. and she should have something smaller and save her money for her kids and not make her friends spend so much on a stupid dress... is this none of my buisness?