What are the strengths of EEG?

Good temporal resolution (i.e. discriminate very brief events in time). Relatively cheap ($10,000-$100,000 per system). Portable and possible to record EEG while people are moving around (e.g. detection of epileptic seizures that can require people to wear an EEG cap for many days). Safe and well tolerated by patients - no real risks. Patients have few concerns about the technology.