[tomkarlo]

You're assuming restaurants look at it as a one-time transaction. But most good owners put a lot of focus on repeat, neighborhood customers, because those are the folks that will come in and dine on a Tuesday or Wednesday evening and help keep you afloat (Friday / Saturday will book out anyway if you're doing ok.) Bourdain said he used to put the interesting specials on weekdays, and save the easy / no-brainer stuff for weekends, partially for this reason.