I think it was the past when bitcoin was well-known for investment as now no one is losing their money in bitcoin and I am from beginning investing in bitcoin which took more than a year and in that whole time period I have not lost my money in bitcoin.
Yes, you are right it was in past that the investment in the bitcoin used to be considered as a risk. Now a day it is the safest investment with offering many french and exciting benefits. The persistent increase in the price is building the confidence of the users of the Bitcoin that they can enjoy the decision of making investment in the bitcoin and became part of it for to enjoy it further you need to trade.
Personally I'm not finding any big risk on keeping all my saving in bitcoins. Some of my friends are suggesting to invest in altcoins too, but I refused to listen those advises as I am comfortable with my bitcoins and its returns.