Would say the Texecom kit would be slightly more expensive, although in my opinion the Texecom APP is lacking.
As you rightly point out, it's all about the law of adverages... as James points out this industry is does suffer from cost being the overriding factor where the home owners phone is worth more than they are prepaired to spend on an alarm system to protect all of their worldly possessions.
On the car front if you check this out I wouldn't buy a german car for reliability
but this is just a observation
http://www.reliabilityindex.com/manufacturer
But then you have to be in your 80's to buy a Honda,