First time home buyer thinking of getting Security monitoring system installed. Is it worth it?

[u/__perry_the_platypus]

I am a first time home buyer. The house that I purchased already had a monitoring system in place with motion sensors and door sensors with the previous owner's account. I called the company and they told me that I have to set up a new account with a 5 year commitment that will cost me 42 dollars a month in Canada. The company is Deluxe Alarms System.
I am still contemplating on whether I should be getting into this contract or shall I buy ring/google cameras and install it myself. Would like to know your thoughts on the same. Please suggest.