The thing that excites me the most about the future is the use of data that we're gathering.  
If you think about what we do: we install card access, 
censors, 
video sensors, burglar alarm sensors...
their gathering reams and reams and
reams of data was just sitting there not
being used 
unless something bad happens, and we need to do a forensic look at it. 
Now, starting to take that data put into
business intelligence systems
and they can be data mined and be used for operational improvement, instead of
just
forensic investigation. Once you get to
that, that's the Holy Grail. 
Once you get to that your ROI stars to
improve on your system security spend,
and that's what it's all about.
