Last year: So last year my MIL made a big, no...huge deal about how important Christmas Eve is to her. She "reserved" us in July. It is her favorite holiday blah blah blah. It was news to me AND my husband. So we made our plans to spend Christmas Eve with them and Christmas Day with my family. We had to switch things around with my husbands ex wife so that my step kids would spend Xmas Eve with us. She said she wanted to do the Feast of the Seven Fishes have a big celebration family dinner with my SIL and her two kids (who live with my inlaws) and the four of us. I cooked my ass off last year for this event made homemade pasta, cappeletti soup, homemade canoli. We get there and and she made a turkey...and a piece of salmon. (Uuummm. Not 7 fishes). No big deal. It ended up being a horrible dinner because my 2 nephews and my SIL have No manners and are very disrespectful. It just blew my mind.
So this year I made arrangements to have my step kids for Xmas Eve again this year, because it ment so much to her. (I feel like I had to sell my soul to make it happen). I waited and waited for my MIL to mention Xmas Eve and nothing. So a few weeks ago I ask her what was going on and she said "oh...well the boys (my SIL' s kids) are going to be with their father this year. I wasn't planning on doing anything". I kind of lost it...I said I thought that it was your favorite holiday, the most important day, that you start planning for next years Xmas Eve right after New Years?" I said since you made such a big deal about it last year I made arrangements to have the kids again this year. She stuttered well I guess I could do Christmas Eve. I don't want people to think I bullied her, she makes me crazy, because she disregards my step kids all the time and has complete focus on her other two grand children. My nephew told me that she bought them the new xbox the other day as an early christmas gift....she heard him telling me that over the phone and I heard her in the background telling him not to say anything. Later that night I got an email from her asking what I thought the kids would wan in the $30-$40 range. Are you kidding me? There is so much disfunction and after typing this rant, I don't even want to go to their house, especially because I can't drink.
Re: MIL Holiday Rant
If OPs kids get less stuff from grandma and OP feels bad, she can bring more gifts for the kids to open in front of their cousins to make them jealous of that's what it's about. Grandma gets to decide how to spend her money.

<p align="center"A little story about one of the most hurtful things I have ever experienced. My dad's mom was never very nice to me and my siblings. She resented the fact that my parents had to move out of state for my dad's job (this happened before we were born). We lived about 6 hours away and she always favored my cousins who lived closer. Sometimes when we would visit we would all go to tour this nearby doll factory that made these beautiful, super expensive dolls. My sister and I dreamed of being able to have one someday, we were even ok with sharing one. We never expected one by any means, we knew they were expensive. My mom also taught us to always be polite and thankful for any gift that we got. So one Christmas we get to my Aunt's and my grandma makes a point to tell us to go to my cousin's room and see what she got her for Christmas. We go in and on the bed is one of those dolls. My sister and I couldn't believe it and because on my other side of the family, my grandma always made sure things were equal, my sister and I thought that maybe this meant we would get one too. Time came to open gifts and we opened up ours. We each got one of the "Barbie" dolls in a plastic bag from the dollar store. We were crushed. I can remember my probably 7 year old self thanking her for the gift and excusing myself to the bathroom where I cried a little and composed myself. As an adult, the problem is not that she bought her the doll, that was her decision to make but that she made it a point that we saw the doll and got our hopes up the way she did. It just seems so cruel to me to this day. That kind of thing sticks with a kid, we didn't need to know that she bought her a $200 doll and then spent a $1 each on us but for some reason she wanted us to know. As an adult, and a grandparent I think you have a responsibility to try to be as fair as possible even if you have favorites.
Exactly this! My parents and grandparents have always been fair with my sister and I and amongst our cousins. My family didn't have tons of money but I never once felt slighted or less loved. There just wasn't any favoritism. They always put a ton of thought into our gifts and made them very special. I will definitely strive to do that with our future kids.