Baby shower?

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I sent out invites and it's been about a month and only 12 people RSVP'ed. I planned on renting out this really nice community center but the only thing is it's 200 along with a 200 cleaning deposit that I get back if the place is up to par. The thing is that's not including food and decorations. I'm not sure if I wanna spend all that money if only 12 people are coming I would much rather have it at my fathers house. Do y'all think more people will show and just not RSVP or should I just see if I can get my money back and have it at my fathers?