What would I get by having the Security Console that I would not get with On Alert?
Peace of mind that your home's security does not rely 100% on a windows operating system.
Now you could get a V572RF32(WGL-28000) which will convert the security signal of a DS10 to a standard x10 address then a CM15A could intergrate that with your other x10 devices.(Not a big fan of this method)
I use this method as well as the Security Console. However I use it more for bells and whistles and indirectly for security. Once the security signal is converted to a standard X10 PLC signal, it is no longer secure; but does provide a method for triggering macros. And it does not compromise the security of the sensors & the Security Console.
Of course OnAlert does the same thing but there are two restricting factors that go with it: 1) The very poor reception of the CM15A has to be accommodated for, and 2) A PC has to be connected and running for a security macro to execute.
I do have a dedicated PC that runs 24/7 and executes macros that send emails and provides speech; but for lights and cameras that I want controlled for security purposes, I use a 2nd standalone CM15A that responds to the PLC created signals from the security sensors.
This method gives my system 3 levels of reliability:
1) Sensors & Security Console: Alarm + Voice Dialer - High reliability (Basic standalone entry point monitor.)
2) Camera & Light control: CM15A Only - Medium Reliability (Primarily to prevent external attempts to get inside. The CM15A rarely stops working on it's own, but it can & has, and if it does the house's entry points are still protected.)
3) Emails & Speech: CM15A under PC Control - Lower Reliability (most likely will work, but not a major issue if it doesn't)
Side Note: In the event that #1) above does miss a breached sensor signal due to (eg) simultaneous RF interference from another device, #2) also turns on a Universal Module connected to a DS10A, which is registered to the Security Console. This helps maintain a High Reliability level for the basic Security Console set up.
there now appear to be multiple ways of doing "security applications" - ie having things happen based on doors/windows being open/closed.
This is true. It's a personal preference based on what you want to do and how you want to do it.