We are open six (6) days per week also. The advantage is we are taking care of our customers, growing customer base, and utilizing fixed assets. If I am open on Saturday my rent, insurance, etc. are covered. I have these costs whether I am open or not. If I am not open on Saturday and my competitor is there is potential to lose my customer to the compeititor.
Our community has a population of about 180,000 with not a lot of shift work. In this market the evening and Sunday hours haven't seemed to be very profitable and haven't caught on.