all depends how much work you put into it. if you dont dedicate time to it, it will take you a billion years, if you put all your heart into it (and dont forget your brain, you need to think about everything you do) you could reach it very soon. there are too many variables like your niche, the current market, your whole idea, to be able to come up with any time frame. if you really want to do it and stick to it and have a good plan on how to, its only a matter of time before you are bringing in big money. hope this helps =)