The reason why we should invest in Bitcoin Or Ethereum ?
If you do believe to the fine tech of these coins then invest because you believe and one day your seed will bloom.
I think that all of invester have the same goal.
This will never happen, some will have the same goal but it won't happen that majority will have the same goal in investing. Some do invest because of the potential of the technology behind it but the most are investing because of the potential profit it can give due to speculations.