The new business was primarily one and done visitors anyway. By the time you've made the trip to the foodie Mecca of Portland and traveled across town to try the "country's best burger" would you really be deterred by a $15 price tag vs $10? How much would you have to raise the price to make that work? How do you do this without forever alienating your loyal local customers once you have successfully chased the hordes away?
There are a bunch of restaurant types which just aren't that elastic to changing demand; basically anything which has a longer preparation time and is expensive enough that you can't afford to just massively overprovision. Thinking like slow-roasted meats, most soups/chilis, or fancy pastries like croissants, yeast-raised donuts, etc.
Basically any place that's serving that stuff (and legitimately making it in-house vs warming it up from frozen like a chain) is going to be done when they run out for the day. So handing out cards to locals to skip the line would be a great way of not alienating your loyal customer base.