same here :/ and i find it kinda hard to get the the 300$ mark without some heavy investment into btc in the first place :/
Besides a heavy investment someone can also earn that much if he has got some eye-catching skills which can be served to the people to get paid by bitcoins from them... there are already a lot of people earning quite a lot of bitcoins using their skills without any investments.
If you are not choosy on what job you will accept for you to earn, then you could really make a big amount of bitcoin, though sometimes it's not yet enough to equal what you earn in real life, it is still a big help... Skills could make you earn a lot, but if you keep on choosing which job to accept, I doubt it if you will earn...There should not be a vacant time during working hours if you are into earning for a living...
It will not give stable income but it can give quick profits which is not possible with any other currency, and if you can grab advantage from each and every fluctuation then you can make really good profits.