As it is reflected in most of the major cryptocurrencies, it really has nothing to do with ethereum per se.

Personally, I would (and do ;-) buy into cryptocurrency whenever it looks low, sell when it looks high, and rinse and repeat -- but, unless you have an inside track, I would only do it with the top 10 or 20 cryptocurrencies and I WOULDN'T DO IT WITH ETHEREUM (for a large number of reasons including the fact that it is a target, the fact that it has not yet delivered on most of the promises that people believe it has and a number of technical reasons that lead me to believe that it is very likely to be leap-frogged).

OH . . . . and Steem looks like a very good choice that has treated me very well.