Totally agree here. The builder may have a number of commitments from other clients that would like to move forward with a build and he is doing the honorable thing and offering you the slot one last time. If you are holding him up for one of those slots or a material order, I get the extra pressure as it is unfair to the builder. I would not be offended.
The fact of the matter is that when you started this conversation you likely had an idea of the cost. It is your propagative to move forward or not, and at some point you have to make a decision. Think of it this way, he is helping you make that decision.
