drop 100$ into buying ETH every two weeks.
If you are scheduling to this buy every two weeks, I have question for you.
What if the price is high after two weeks has passed? Are you still going to pursue this plan of yours and will still execute that bi-weekly for ETH?
If your sole purpose is to hold ETH for long term, there's no need for you to consider even the price is high by that time.
He would definitely go for long term since he do choose up ETH rather than on bitcoin itself using up his coins being mined. Not a guaranteed long term investment but would really worth a try since we do know on ETH's capability and potential in longer runs but well we should always think on the risk involve since price might not go on what we do expect but somehow we can really convinced ourselves that we are really on the right path.