Even small operations end up viewing the footage which requires a lot of back and forth search. This isn't really an easy thing on tape which has made the hard

Even small operations end up viewing the footage which requires a lot of back and forth search. This isn't really an easy thing on tape which has made the hard drive option the best. Plus, most of the newer cameras are HD and that upped the speed requirements for recording. Never mind how many cameras you end up getting just to provide coverage of buildings, particularly non-rectangle setups, and that's just the outside.