We have 9 security cameras dotted around the property here where I work P/T in So. Fl. at a motel. We don't make a big deal about it but find it gives our guests some peace of mind to know they are being looked after.
There is probably a deterrent factor with these cameras but we have turned over footage 3 times to the Local Police and all three times it has resulted in some level of prosecution for the offenders.
Cameras and recorders are very inexpensive now. Our 9 camera/ 2 terabyte recorder costs less than $1000 US and considering the increased business that the peace of mind brings, that is a real bargain in our opinion.
BTW, we did all the installation and do all the maintenance ourselves.
Peace and Guidance