I hear ya about the gadget buying phase...I've been going through that a lot lately.
I usually keep mine on silent and check it every now and then. Couple years back I had a nice buck about 7 yards away. I was drawn on him waiting for him to step out and then I hear "vuh vuh vuh" all of a sudden. Evidentally flipped the phone shut too soon after hitting the power button and it didn't turn off. He got out of there. Anyway, I just put it on silent anymore.