For anyone who can't get past the assumed 11.5% ROI here are a few things I will say about that:
1) 11.5% comes from the annualized return from the S&P 500 over the past 40 years with dividends re-invested.
2) If that doesn't sit well with you, use a 7% ROI, invest 1k initially, use the $50 to get more inventory and net $420 a month, in 40 years, you will have over a million dollars. Not bad for starting from nothing.
3) The point here is to show a process of taking $0 and making it grow. This is the process *I* am using, and am having fun with. You are welcome to replicate it by 1) Reselling 2) Investing the profit long-term
4) How large can you turn $0 into? and what is your process?