retired after 20 years working as telecommunication specialist for the Dutch government. After moving to Phuket Thailand , my wife and me founded our company in 2001. We provided IT services mostly for the hospitably industry,and repaired computer and electronic equipment for expats. A customer brought me a CCTV system for repair and I found that the recording quality was so low that it was practically unusable, faces were hardly to recognize with this system. We decided to promote better security systems, our competitors are more focused to install the cheapest stuff and make a nice profit.
In that time network cameras was the only solution for high resolution video but IP cameras were not cheap, with time quality went up and prices down.
A few years ago, was a new standard for analog HDTV developed, and we find at the moment the analog HD cameras are very competitive against network cameras with price and real time recording quality.