I've spent more than $30k on security cameras at work, and plan to spend at least that much in the next two years. They're highly valuable, even though I don't use them primarily for security.
One thing I've wanted that isn't available is a very, very long-zoom security camera. The SX50 lens and sensor module with 2x digital crop would yield 1920x1080 without upresing with a zoom range of 100x (24-2400mm equivalent). That is something I could really use. The best I have now is a 20x range from about 35-700mm.