I think thats very smart. However, personally I would advise to hold some BTC and diversifying your portfolio with other token currencies that are at an all time low. And hold until they reach a high they haven't seen in a while, and sell some of that token doing well, while holding some of it the same way i recomend for BTC. Take a look at SC as one such example, granted its a newer and thus more unpredictable coin, but holding amounts of everything and selling high, you can't lose unless the whole market crashes. This is also assuming your not going to panic, as so many seem to do, and sell with a crash. (Sorry for run on sentences and grammer written from my phone.)