Why these EEG devices up to 50 000 USD do not fit for us personally for our needs

Nr. product issue remark 1 Muse headband no SDK anymore 2 OpenBCI Issues for instance with the WIFI shield are not resolved by www.openbci.com since years 3 HackEEG A device which was only available for a short period of time. 4 PiEEG Will it ever be availalbe sustainable for a stable price? 5 mBrainTrain CEO …