When did you first realize you could shop a mortgage?

From actual City Creek Mortgage clients

"We realized that we could actually shop a mortgage, i think on our fourth house, wasn't it? It was not until our fourth house, the first three mortgages, we never shopped. We just went with what our agents said to do. Yeah, and our agent would recommend a mortgage company we thought that would be the best person to go with, not realizing that it might be possible to actually shop this and get a better rate, or even a better experience."