A good investment strategy is to just keep your investment when you believe in it.
If you believe in Eth, there shouldn't be a doubt saying it reaches the "top". Because for investment that contains a good future. They will always appreciate.
I believe that Ethereum will go up more than just $1,500/eth, so I kept my investment. Even though now is not a good market timing. Ethereum has this thing where alt-coin can partner with, and bitcoin does not. That makes Ethereum the most powerful coin in the future.