I'll refer you to this post by Steve Blank entitled "Raising Money Using Customer Development" and then you can tell me how that graph is not the result of lean startup thinking...as for your desire to keep burn low by maintaining a day job while building your company, I'll go ahead and say your aversion to risk and lack of devotion the the mission of your company is uninspiring...enjoy your flat screen tv and 3:00 latte's while the enterprise value in your company grows at 1/10 what it would if you sacked up and worked full time on the startup...i'll check in with you next year when you are still an "entrepreneur on the side..." way to go man...you're a model for us all...way to keep that graph going up and to the right