I think bitcoin is really a good investment for now, but I don't think it is a good idea to put all your investment in bitcoin or crypto currencies since it is unpredictable and very risky to take. For me it's still better to start your own business than depend your future in bitcoin investment.
What do you think guys?
You are very right, one can not depend on bitcoin full time. Even though we do not anticipate bitcoin to go negative any moment now, it can disappoint at any time and render your life awful. It is advisable to diversify your investment to prevent any unforeseen threat to your investment.