Not a lot of people use light meters anymore since we have them built into our cameras. I guess the answer is up to Sekonic.
Maybe not a lot of people, but a lot of photographes do
. . especially in the studio or outside in tricky lighting etc. You uise them if you need the best possible exposure of a scene or in a studio setting . . PERIOD.
I went all out and bought the L-758DR . . great for video and stills.
Our cameras can meter fairly well in many situations, but they are not as exact as pro light meters, and can get tricked in MANY lighting situations. With a handheld lightmeter, you can measure incident and flash etc, etc. . . and alter camera setting accordingly. Done!
I guess the reall point in the end is that if you make money off your images and are expected to be exact with less hassle, in studio or out, then a light meter should be in your kit. Not everyone needs it.