^^^^ That might be. It's not going to stop me from trying. Couple reasons. First, there are places I want to watch that I just don't have time to cover adequately in person. Trail cams, regardless of their limitations, remain the best option available. Second, I hunt the same areas I'm researching so pictures of normal game animals are of value to me as well. And following up on both, having an idea if there are other people also passing through the area is of great value. A third ... merely being out there taking care of my cameras exposes me to the opportunities for an "encounter" (of whatever bigfooty sort) I wouldn't have if I stayed at home watching TV 'cause I didn't have cameras to go visit.
I see no 'lose' in trail cams whether they get bigfoot or not.
MIB