Time to set huge buy orders at $100 then
Seriously, the only reason it would go that low would be either a serious issue with the code itself. (One of the crypto algorithm gets cracked)
Or .. end of the times. But that day, nothing will really matter.

There is no way it goes back to below $50. This was bitcoin price in 2013 and since then it grew a lot.

Good luck with Kraken.