Cheap Bridal Shower on Long Island?

Hello - I need some help finding a decently priced place to have my bridal shower. (It will not be a surprise and I need to pre-approve the place!) Anyway, we cannot have it at anyone's home because there are 50+ people invited and we cannot fit them all. Also it will be in April and the weather could be iffy so we need an indoor place.

Also most places are $30 and up a head which is a bit much. Has anyone been to John Harvards for a shower? They have great prices. Also Taste is Sayville has good prices but I have not tried their food yet. Any help or input would be greatly appreciated!