Cost of EEG devices suitable for neurolinguistic research
We were looking for an EEG device few years ago. The commercial offers were between 20,000 EUR for a 32 passive electrode to 50,000 EUR for an 64/128 active electrode. This included everything except the computers - some offers were without off-line data processing software. I never considered the EEG systems that were not mentioned in the method section of my research domain. And beware of the local regulations and ethical considerations concerning home-made devices for recording human biological signal.