Well the PRESS or the past two weeks has been declaring BTC dead, and obviously the draw-down of BTC was to be expected, nothing goes parabolic, without a collapse to follow, but like GOLD its not going away, simply mean-reverting to its TRUE VALUE, before the idiots came to the test post Jan 2017 and drove up the price with credit-card debt, and FED-FIAT for free. Now there is no MORON money coming to the table, so the VALUE of BTC will more reflect its value as a means to move assets from A to B during a crisis ( think war ), GOLD can no longer be used and diamonds with the advent of modern body scanners, so now the only SAFE way for people to move vast wealth when they flea a country is with something like BTC, so its NOT going away.
People with wealth will crawl back to it once they see it mean-revert, just like gold has had a safe- band at $1200 for a long time, but it could drop to $1k tomorrow, but that's ok
For now the problem with btc is it could possibly drop back to $400, I think $1400, but $400 is possible;
Lastly the NOTION of INVESTING in BTC is a zero-sum game, its a 50-50 roll of the dice, there is NO certainty of future value, thus according to Satohsi Math ( Kelley Criterion ) F=2*P-1, when P=0.5, you invest ZERO in something, once BTC falls below its MEAN-REVERSION level then its possible that the P, will go one way or the other,
The problem for now is the UP side is that a WAR tomorrow could drive BTC up but its not likely, on the other hand BTC will continue to draw-down as the idiots are force to close-out.
...
BTC for mining is OK, get it for free, especially early, but now its too late to mine, an S-9 Antminer ( bitmain ) will fetch you a loss of $1/day today, so its no longer profitable to mine. Difficulty could drop, but with so many S-9's laying around dormant it will be easy for people in places with cheap-electricity to pick them up, so for most people btc mining will never again be profitable.
IMHO the only profitable way to play BTC is to hack it, and get it for free, runn GPU class mining rigs to find 'lost' pristine SATOSHI pre-2013 coin, is far more profitable than mining. I call this the BTC inflection point, where metal-detecting on the beach looking for lost gold, becomes MORE profitable that scanning the same detector on a river in an old gold mining area. Most people aren't looking for lost-coin, in time that too will dry up, like all things that do, I suspect we'l soon see HW/SW packages sold by china for searching for lost bitcoin gold-dust.