EEG device sellers on Aliexpress react very nervously on reviews about EEG, for instance by increasing costs for EEG caps if we write reviews about those.
Is there someone who tries to maximize making money out of EEG caps?
We reviewed the Greentek Gelfree S3 cap in our journal.
We complaint why this cap is not available on Aliexpress, as other EEG caps.
Shortly after that, the Greentek Gelfree S3 was available on Aliexpress for more than 1000 USD.
This is even more than if we buy this cap directly from Greentek.
Who pays this much for EEG cap with only little components?
EEG caps can be built from single components.
Why should some spent this much for an EEG
We do not know of scientific papers the Greentek Gelfree S3 cap is used in
The lowest price for it could be found in the OpenBCI USA store
This is a store which is not known for low prices
We cannot follow the business plan behind the Greentek Gelfree s3 capabilities
Does Greentek think they find new customers in Switzerand, if this cap is sold at a high price on Aliexpress so that Swiss have to buy the cap in the US?
High shipping costs and import taxes are the result
Does here try someone to make money out of EEG caps, components from wich we do not think that there is a big market for it?
The result is that we think it is better to build caps from single components by ourselves
