should we?

My brother and sister-in-law have already installed security cameras 2 months ago, just in time for their month-long vacation. I get to watch and check their home from time to time as he gave me access to it. It is soo cool I must say. Yesterday, my brother asked me if we want for our cozy 2-storey townhome. I would want one too since most of the time, our house is empty. DH and I are on work while the little boy is at school.

So do you think we should also install one?