MIL and baby shower, I need some advice!

Jessica

My sisters are throwing me a baby shower for our family and my mom's close friends (I am having another thrown by my friend for my friends), the guest list is probably going to be about 25 people or so, which already seems like quite a large group. My MIL recently asked me about any baby showers I was having and wanted to let me know when she would be out of town this spring (so I didn't have the shower then) and talked about how she would like to invite her sisters and her niece. Is it weird to anyone else that she would invite herself and others to the shower? I mean I'm sure I would have invited my MIL, but if she wants to celebrate with her sisters etc shouldn't she throw a shower herself? I'm not trying to angle for another shower and honestly I wish I could have just one and get it over with but I don't want to place the burden of all those extra people on my sisters. Is it rude to suggest she have a little shower herself to which she could invite anyone she wanted to celebrate with and I would be happy to come? I don't want to hurt her feelings, she is sensitive but really she only has good intentions.

What do you ladies think? Did your "family" baby shower consist of both your and your husbands side of the family?