Gas & Fonts

I was at the gas station filling up the tank (unfortunately we still have 1 gas vehicle), when I noticed the numbers were in the typical 7-segment display style, but the screen was a modern LCD. It's curious that they made this intentional choice to imitate an older technology on a modern display. I imagine it must be due either to familiarity (most gas pumps still use actual 7-segment displays), or readability. I also wonder why they chose to use an LCD. The numbers only occupied a small corner of the screen. The only other active pixels were showing a tiny padlock icon. Maybe the screen facilitates maintenance operations not typically seen by a customer? Unfortunately I didn't snap a picture, still don't feel comfortable pulling out my phone near a gas pump!