i think there are still many people investing in etherum, etherum is one of the very best projects, many Token coin have succesfully with crowdsale based ethereum and if ethereum scam how about all token based on ETH.?
Thats a fact that for now, many people are investing into ethereum because of many ICO's that are based on ethereum, the erc20 tokens, and also many just want to ride the pump of ethereum but I guess I would not call it a scam but I will say that the price is manipulated. Im sure if those companies behind those ICO's successful decides to sell their gathered eth in their crowfund sale, then eth will go back to the price it is supposed to have now.