Just like everything else before the internet. Not many people know what it’s like to go to their broker’s office to look up charts on Daily Graphs.
I was a long time user of Telechart and then TC2000. It isn't the company nor product it was back when Don Worden wrote his nightly report and hosted the Knights of the Round Table. I'm mostly a swing trader, and for me I prefer IBD and Barrons for finding ideas. I like TDA's Think or Swim for charting. Best value in the world as the platform and the data are free.