Acceptance: Analog Cameras have been around since last 50 years and even though some might argue that this speaks of their durability and them being widely accepted by the masses, the IP camera have been in play since more than a decade. With its cutting edge technology it has very quickly and rightly so made its own position and preference amongst the experts. 

Scalability: With the traditional analog DVR(Digital Video Recorder) setup, every camera had to be connected directly to the DVR. This might work well when only one or may be a handful of cameras are placed in a small space, but with huge span of area, it will take up a lot of wiring thus make it a complex system. In case of an IP Camera however this can be completely avoided using switches and the cameras placed close to each other can be connected to a single switch, which runs a single wire to the NVR(Network Video Recorder). This not only reduces the cabling but is therefore less labor intensive and provides the option to add more cameras on the same system. Along with that if we use a PoE (Power over Ethernet) switch, the Cat6 cables can run the signal while providing power to the security camera. This eliminates the requirement for a separate power supply.

Storage: Unlike Analog Cameras, IP Cameras require less physical storage due to the feeds being digital. Most IP cameras come equipped with a microSD card so that the video can  be backed up on the camera itself. The video footage from IP Cameras can also be stored or backed up on the Cloud depending upon the user's requirements.

Access: This is probably one the most important factors that has made an IP Camera, the star of the show. IP Cameras have remote access since they are network based and can be viewed over the internet from anywhere. With everyone on the move, this comes as a boost to security systems. On the other hand, wireless Analog Camera is very unreliable and falls short as compared to its successor unless added to a DVR for hi-definition result.

Security: The feed from IP Camera can be encrypted using  WPA, WPA2, TKIP, AES for keeping it secure and hence making them harder to intercept. But, this comes along with the requirement of keeping the network safe from a virus attack or hack by putting up necessary firewalls. With Analog Cameras the feed can be intercepted much easily by accessing the cabling.

Another advantage that IP camera has over the analog camera is that it provides two-way audio via a single network cable. This allows the user to interact with the subject and is useful in many situations like in an elevator, or assisting someone through the camera feed.