The events I have organized, the caterers rented all of the tables, chairs and service. Or the organization did so and worked with the caterer. These were not 'picnic' style. The church events all used disposable stuff and tables and chairs were owned.
I'm feeling bearish, and I'm packing a Wusthof Grand Brisket slicer from MABA
"I'm Armenian...perhaps...but then again...maybe not..."