Marguerite MacManus recently presented and taught for my quilt guild and she showed her table. It was nice.
This works and is inexpensive and easily put away if necessary. I would suggest you get 2-3 tables. One for the overflow when chain stitching or quilting and the other for any extra room. As you mention they don't take much room when folded.
I still prefer my cabinet though I do have the 4' x 2' tables to extend my quilting/sewing areas.