Wedding for 100 guests - Long Island

Eventective.com has venues to check out different from the WW/Knot listings. A blank slate where you bring in your own vendors will be cheaper. All inclusive venues have 5 figure minimums for food/beverages alone that many cannot afford.

Have you checked out the "Venues" tab, above? We used that to search, and cross-referenced with the Knot and Google.

The advantage of using wedding sites to search is that they allow you to search by date/cost/size.