Bitcoin is good investment but I wouldn't suggest to put all your money into it. I wouldn't suggest puting all your money into anything, not just Bitcoins. Every investment is a risk and there is always the danger of losing money so you have to invest with care and you always have to have some back up. Don't ever invest more then you can afford to lose.
I agree. It would be too risky to dump it all in investing because the characteristics of bitcoin may negatively affect your profit. I mean, right now, the value is really skyrocketing in an alarming rate that it would entice anyone with ease to invest everything. But, you have to look at the bigger picture, it's not always like this, there will come a time that it may decrease or may halt, thus, it would be unwise to put everything in, not unless, the money that you are invest is really "extra" and you still have some savings left for your day to day and other unforeseen expenses.