To your point #1: We get this ALL the time in my business (which is much more expensive and a brick-and-mortar service). My answer is generally along the line

To your point #1: We get this ALL the time in my business (which is much more expensive and a brick-and-mortar service). My answer is generally along the lines of (in a much less snarky way): "Great, if you become a regular customer we'll give you a discount on your 3rd visit." The ones who are serious go for it. The ones who are not (which is most people) say something like: "Well, I don't know that I'm going to be back 3 times." Well, then I don't know that I want to give you a discount.