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?
I guess nobody will try to encourage you to invest all your money to bitcoin. Investment is done for future profit, you are storing a portion of your wealth for a decent return in the future. So, you will still think of what is for the present. You still have to generate a regular income to sustain your present expenses, while waiting for the result of your chosen potential investment.