It's extremely expensive to get a physical space these days, there are no old warehouses or cheap community centers where you can just run a community event. They cost thousands of dollars to rent for a day, so anything short of a ticketed event or selling lots of alcohol is not viable.
The places that do still have a physical location are often almost grandfathered in where the organisation bought the land decades ago and now pulls in enough from investments to continue perpetually, but could not afford to buy or rent the space at market rate today.