High-value or otherwise desirable products make these stores a very attractive target for loss-generating crime. With network video you regain control over spaces from the parking lot to the storeroom.
This not only dramatically reduces the opportunities for criminals, but also helps you implement systems to protect goods, employees and customers, including finding a missing child (e.g. Code Adam in North America and Canada).
Network video powerfully deters undesirable actions by employees as well as customers, and gives you the evidence required for successful convictions - from an opportunist slip-and-fall scam to a sustained campaign of POS/cashier fraud.