Good Selling / Bad Selling!

Some years ago, I had possibly the best Receptionist/Gatekeeper in business, she understood and could stop none essential sales people from getting through. One day our Receptionist/Gatekeeper brought me a package. It had been hand delivered.
In the package was a T Shirt from my alma mater — Indiana Institute of Technology, and a note from the salesman requesting an appointment, and comment that he hoped I appreciated his effort to get my school T shirt. He said he would call in a few days.
I graduated from IIT in 1973 with a Bachelor of Science in Mechanical Engineering, the idea that this salesman had gone to the trouble to get me the shirt was unique and I liked his style.
At that time I instructed our receptionist/gatekeeper that I was impressed by this salesperson and that when he calls I will take the call. After a little research on his company, I was pretty sure I would not need his services. However, I would listen to him and then if possible direct him to a referral.
He never called!

How many times have you had seemingly good salespeople just not follow through?

Good selling or bad selling?