Have you called hotels and asked about their conference rooms? Or maybe call your local chamber of commerce and ask if they have anything or any suggestions.
$100 its really cheap! But not worth it if you are gonna spend more money making your baby shower and not getting what you want.
I stressed about mine for ever till I called the church by my house and they actually rent their meeting hall I'm paying 375 from 5 to 11 and I'm having over 120 guest .. Definetly the cheapest
call local resorts !
Try a public space like a community center or t recreational hall