Since Mark has been good to us with special offers and member deals all the time, and even gave us a little "heads up" that the sale was coming, I am a little baffled at the hard feelings.
I had been planning on a purchase and was about to message him when I saw the sale notice. Checked the prices and decided to get the next bigger unit for what I was going to pay for the base model. Had I not gotten in on the sale, I am sure that the deal I would have gotten on the other unit would have still made me happy.
I try not to beat myself up too hard on missed prices or opportunities, there isn't enough money or time for me to make all the deals. If I need a tool and paid a fair price I do not feel that I got taken advantage of, even if someone else found one there, at another seller, or by the side of the road before or since. And sometimes, if I am careful, and watchful, and polite to those who are trying to help me like Mark, I can get a deal.