Haven't used one in years. I've been hunting the same stand for 8 yrs on a 1000 acre lease with 5 others. We all see pretty much the same deer as the season progresses. Since I will spend 90 percent of my time in my blind I don't bother with the camera anymore. I have found that the less you prowl around the more deer you will see.
Back when I was younger and liked to still hunt I used cameras to help locate bucks, not that they were really any great help. I had more luck looking for sign.