These tactics work. I purchase technology for an "enterprisey" type company and these definitely help make sales to me.<p><i>However</i>, they do not work on their own. There still needs to be a strong value proposition, good fit between the product and the need, lots of technical info to satisfy suspicion and curiosity, a reasonable contract, etc.<p>What these tactics do is help get the conversation to a place where it can be substantive. I'm busy, you're busy, we're all busy. I'm going to say no, reflexively, to any conversation I'm not initiating or continuing--to anyone I don't recognize.<p>If someone sounds tentative or scared, if they don't seem to know a thing about me or my employer, if they can't just hold a normal human conversation, I don't know why I would want to talk to them.<p>Any product or service that is sold by a person is going to involve a relationship. Services and products need training, support, and improvements. The sales person is almost always going to be my champion in that relationship, because they want an easy renewal or upgrade. So if I don't trust the salesperson, it's hard to trust that I will get the support and service I'm sure I will need at some point.