Could your supply/price problem be solved by simply stocking up on coins at current prices and selling those in the following month? Woudn't it be easier on the books if the coins you're selling are from last month's purchase, and the coins you're buying are for next month's sales? You would be building a reserve in profit margins to protect against a price drop, allowing you to operate profitably on a long-term scale and not focus so much on the day to day aspect of it.
I realize it's still risky, but depending on your volume, I think it would be much harder to lose money this way over a significant time period unless bitcoin enters a very long downtrend.
As long as the price keeps going up. I sell to the public so I have a decent idea of the number of new users coming on board. Obviously I dont know all of the market forces at play (no one does) but IMO their is not the market demand to justify the price. I have only been involved with btc or 6 months. When I got in it was moving every evenly upward. Once the price spiked my sellers ran out or started to try and F!@# me on the price. under that scenario I bear all of the down side risk. So I told my number 1 seller "why so I need you?" If I can just deal with the exchange. I told him that I can play the same game. (i can buy large quantities on a dip), but that is not really what I am trying to build. I dont care about getting the market moves (i know it can be a lot of money) I want to get paid for giving the people what they want. I want to get payed for serving my customers. I believe that the market rewards the people that do the most good. You shouldn't get paid for for hoarding like a troll you should get payed for sharing it to the world. I sell to people no one else would touch, new users, for PP. It is a lot of work to verify accounts and I still have charge back risk. I bought 6,600 in btc this year and have 0 coins right now I made about a 1000 selling the coins, not very good I know. In my other business I have 20,000 dollar months with 0 risk. I look at what I am doing as building a real market.