I don't think I was very clear but yes, that's what I meant. You can't just look at the short-term gains of the promotion; if it suppresses repeat visits then t

I don't think I was very clear but yes, that's what I meant. You can't just look at the short-term gains of the promotion; if it suppresses repeat visits then that's a cost. And yes, it's hard to do, and is an art as much as a science.