Even though it's current state may deteriorated from it's former peak but as long as bitcoin is not dead it is not too late to invest. Although bitcoin is a bit risky, as long as people willingly look at it deeply one can see how profitable bitcoin can be, so owning a little bit of this currency matters.
Well its not really good to wait for it to move towards the peak before you invest lol. As they always say, buy the dip and whatevers making this current drop, it's making a good opening for people who wants to get in to btc.