Trail cameras can be very useful to a hunter. They can give you a relative idea of when game travels by that location and even the quality of animals in your hunting spot. One year I had pictures of a 16 pt. buck near my house. I was able to watch his antlers grow through the season and then shed velvet. I even have pictures during the shedding process. Later I got photos of him with a terrible arrow wound in his shoulder that I was able to document it's healing.( shot by a neighbor) Eventually I caught up with him in late season, but not near a camera.
Not only will you get pics. of your target animal but you will get photos of ALL the different wildlife including some of those elusive nocturnals. Catching pics. or even video shots of turkeys in your area will definately get you fired up for the season.
Try one out for the FUN of it. I am sure you will enjoy looking at all the photos you get!
p.s. Cellular transmitting cameras are a different story though. I don't like the idea of a LAZY hunter being able to watch one or many hunting spots without leaving their seat. I picture some rich hunter with multiple cellular cameras, cherry picking his daily hunting spot by the up to the minute cell reports. Heck , he could change locations in the middle of a hunt when his Blackberry alerts him of deer prescence. That doesn't seem fair and ethical.