We discussed the layout of the room, and I mentioned that we liked to put tables out and that our max audience would be just over 60.
Vin being a man of business and knowing his trade, just said "If you look down on the floor, over one third of the room will be taken up with tables, when they could be taken up with audience, who you may well have turned away"
I went away thinking about that. From that day, we work on the basis of "if the audience looks as though its going over the 70 mark, then we do not put tables out."

Making the extra cash while you can is fine, but folks may well feel the ambience of the venue is compromised by the absence of tables. One of our local clubs looks about to bite the dust after many successful years, and the demise is more than partly due to the practice of putting high profile guests on in a larger venue and setting out the room like a classroom from the 1950's.