I wish we'd see less of these things, not more, which actually seems to be the growing trend. The technology is just too cheap and readily available, and as you've experienced... it produces revenue!
The camera resolution is starting to peak out in terms of bang-for-the-buck, but the area that I find really disturbing is how the
software is getting much smarter, with facial, motion and number-plate recognition, and things like actually being able to pick an individual out of a crowd.
The UK is already estimated to have nearly 2 million CCT cameras, and if you really wanna see where all this is headed, check out China's Golden Shield project (aka,
the Great Firewall of China), where the goal is to have all the country's security cams, linked to one massive database, capable of recognizing and instantly accessing any individual's legal, employment, health, and other records... for China's "security" of course!