Mother is a snob

I need to vent! My mom is and always will be a snob! We decided on a theme for the nursery, and it's Harry Potter. What is the first thing she does, but can't you make it something else? It sounds stupid! 
Who the hell asked your opinion! I just called to tell her that, to keep her up to date! I want to scream with frustration, because we can do so much with the Harry Potter theme and  I want my children to love books, to enjoy reading books, and Harry Potter was the first book that got me hooked on reading! 
Why does my mother have to be like that! She even pulled snob when we told her about our pram, because her friends daughter is thinking about the stokke prams! We don't have that much money, and neither does she!