when bitcoin is being correction, you can buy Alts at the dip price, so don't invest all of the money, leaving some to buy alt when bitcoin correction.
for example $ARPA and $AKRO will be launching a new program in the near future, I am sure it would be very profitable if you could buy it at the dip price.
If Bitcoin dips why noth buy Bitcoin?
When Bitcoin corrects altcoins usually follow behind so if you are quick to buy altcoins during the dip you could be buying too early, before the alts really take a dive.
Both of the coins you've mentioned look like they're at their ATH. Is this really the time you'd want to buy and hold?