FYI this is a concern that companies using USD also face. (For example Apple will quote a USD price for a laptop that they will build using Yuan... even though the exchange rate between USD and Yuan is always changing).
In fact, your USD pizza parlor example is actually more complicated than you make it sound -- tomato prices, wheat prices, etc all fluctuate based on supply and demand.
I think this is a place where web entrepreneurs get confused because their high margins and large suppliers do such a good job isolating them from the problem: if web profit margins were 10% over the cost of hardware, and if you were running your own servers, you'd be exposed to the fluctuation of energy and bandwidth prices... you'd have the same problem predicting how much it would cost to serve a web request. (I imagine Google actually faces problems like these because of their scale).
So it's not like these problems don't happen when you use USD... it's that your margins are so high, and your providers are so good, that you've forgotten the problem existed in the first place. #firstworldproblems
For those curious how these sorts of problems are handled by non-web companies, the answer is derivatives. Apple will hedge their USD -> Yuan conversions as necessary with currency options, Dominos uses wheat futures, the farmers supplying wheat to dominos are using oil futures, and the oil company will have currency hedges for the 50+ countries they operate in. By buying and selling risk, companies are able to give you the feeling that prices are stable. Even though prices aren't stable.
If you'd like to do something like this for your bitcoin site, you should check out https://icbit.se (a bitcoin derivatives exchange)
In fact, your USD pizza parlor example is actually more complicated than you make it sound -- tomato prices, wheat prices, etc all fluctuate based on supply and demand.
I think this is a place where web entrepreneurs get confused because their high margins and large suppliers do such a good job isolating them from the problem: if web profit margins were 10% over the cost of hardware, and if you were running your own servers, you'd be exposed to the fluctuation of energy and bandwidth prices... you'd have the same problem predicting how much it would cost to serve a web request. (I imagine Google actually faces problems like these because of their scale).
So it's not like these problems don't happen when you use USD... it's that your margins are so high, and your providers are so good, that you've forgotten the problem existed in the first place. #firstworldproblems
For those curious how these sorts of problems are handled by non-web companies, the answer is derivatives. Apple will hedge their USD -> Yuan conversions as necessary with currency options, Dominos uses wheat futures, the farmers supplying wheat to dominos are using oil futures, and the oil company will have currency hedges for the 50+ countries they operate in. By buying and selling risk, companies are able to give you the feeling that prices are stable. Even though prices aren't stable.
If you'd like to do something like this for your bitcoin site, you should check out https://icbit.se (a bitcoin derivatives exchange)