Wayne was smart enough to figure out a decent answer based largely on a ""feel"" for the situation. The customer's response also reinforces the fact that often the value of what we offer is valued more by the customer than we think.
I've been struggling with pricing projects for at least 3 years. I'm good, but not great at it. It still takes me too long. Part of the struggle is trying to get inside the customer's head; the customer, my ""audience"", is nearly always the Controller/CFO - not IT. My point to getting in their head is to try to empathize with their view of what a reasonable expectation of price/value would be.
Nobody develops ""a feel"" for a situation without repetition of similar ones, and then reflection on them. I know that Wayne has lots of both. To help those who are just starting, I offer up two thoughts to explain why Wayne's solution worked.
1. His ""ask"" matched the most premium price that the customer had seen. The customer has been working with Wayne and his fixed price approach for some time, so he knew he would get a fixed price. He was probably expecting an extra fee due to a quasi-expired quote and the unexpected rush. I wouldn't be surprised if he expected those ""penalties"" on top of the previously-quoted, weekend fee. So offering the $4700 meant that the customer might have been relieved that premium wasn't higher than he'd already seen. Hence, no push back, and Wayne maintains his image with the customer as an excellent vendor who is also fair in pricing, even when the chips are down.
2. Wayne didn't offer explicit choices, which make it possible for the customer to buy SOMETHING. But I always fear offering just one price because if the customer says ""I can't"", then I must decide either to simply walk (take it or leave it) or negotiate. I never cut a price without getting something from the customer. Never. Often seeing what we can cut from the proposal is tough. But here, I suspect Wayne would have traded a lower price acceptable to customer in return to doing the work later. Essentially that is offering my graded approach without offering all the options at once. It's a good thing to keep in one's hip pocket in situations like this.