As a trailcam veteren, let me say this to you. They cannot be used to pinpoint a certain animal. Therefore, you cannot consider them a violation of fair chase. They are great for seeing what is on a property and especially effective to see what survived the season. I too, began using them as a way to help scout but like the other poster, it has morphed into it's own hobby. I just want to get great pics of whatever. IMO you have to spend at least $200 to get a decent and reliable cam. If you ever get into it, I predict you will become addicted and have to have more than one camera. Good luck!
Blessings.....Pastorjim