regular repeat business, getting busy/profitable on other (no big name) nights.
However your statement isn't ideal, Using the well regarded Razor/blades example, I buy a new Razor as often as I buy new blades, so it's not always a one off 'loss'.
For example maybe someone goes to see their favourite DJ, loves the place and becomes a regular, you've got to get them into the place first (the razor) before they can come back again (the blades).
The more big names you get the more people talk about you, the more visitors to check it out and if they have a good time come again.
Once they have the core customer base, then they can move into profitability even on big name nights.
I for example went to see HED Kandi but have been back 4 or 5 times on no name nights and will likely go again.
As Surin becomes more and more busy and popular it has a chance to become something pretty special, I was really surprised eating out at Taste just how popular Surin has become, it was packed. (Taste and the fish restaurant next foor) witj a real good buzz.