Were you expecting to monitor the cameras over the Internet without an Internet connection? This reads like you were expecting the cameras to have built in LTE without some kind of subscription.
Yeah, this post is bizarre. Between "I bought an expensive $40 security system" and "it needed the internet, so I got rid of it and built my own, which also required the internet", I don't know what to think.
The post said that the commercial security system required "broadband Internet", which had a much higher monthly cost than the existing lower-speed Internet connection.
According to the post, the commercial system demanded a $100 monthly cost for the security services and broadband Internet, vs. $5 monthly cost for a lower-speed Internet access that was enough for the custom solution.
Therefore the reduction in the monthly expenses was worthwhile.
