I can't really help you on the price question because I can't remember what I paid for mine (although think it was just over 1,000 for the components you mentioned, but couldn't be sure) however with regard to your autodialler question...I have this on my alarm and it does give me some reassurance. I live alone so if my alarm goes off inthe middle of the night it will send a text message to my family who live nearby. In that regard it's a safety thing. It's also good as it means if it goes off during the day (as it did recently when a neighbour was having some work done) it means I can get someone to go down and turn it off rather than annonying the neighbours all day with it. The negative side to the autodialler is that I have been known to set it off about 3am when drunkingly coming in the front door and putting the wrong code in...doesn't go down well with the family who all get a 3am text!!!