Well , they say never buy in top neither when it is on bottom , because if you are not sure it is the bottom it can goes deeper!
2 points are not very stable , very top and very bottom , between those would have less risk .
I can rely in thia one because possibilities may happen so we cannot say that if the price is down the price will get up some of the coins when they gets down they will going to crash much more that leads for the coin to be dead. So never buy those coins that are not that ild in this thing because new coins are not that strong enough to handle such a downfall. Just when they pump a little higher then that is the time to go because that is for sure will gp up again