I´d strongly advise against following this advice. You make it sound as if a return
to 1400 $ / ETH is a certainty. Ethereum is suffering from various flaws that can´t
be fixed (e.g. the crazy size of the Ethereum blockchain) and even if we ignore this
problem for the sake of argument, it is unlikely that we will see this kind of growth again.
It is unclear whether the switch to PoS will actually work and how the miners will react and
therefore it is entirely possible that the whole project will die (or we will see another hard fork).
Besides, the big rise in the price of ETH was fueled by the addition to sites like Coinbase.
Given the fact that ETH is trading on these sites now I fail to see another catalyst that could
cause a similar rise in the price of ETH.