That's just not true. It's like saying you must convert Dollars to Euros in order to use them in Europe.
Last time I went to Europe I had to convert my dollars to Euros to spend them in the store. There might be some stores that accept Dollars but even credit card dollars are converted to the local currency. Not sure what you're talking about....
Once bitcoins are widely accepted and everybody takes them as payment, there will be no need to convert them since they ARE money.
Except to pay for electric.
But you must convert to dollars to pay for electric and hardware.
Not for hardware. There are people who already will purchase things from Amazon and NewEgg for you, in exchange for Bitcoins. Plato is travelling the U.S. using only Bitcoins.
It's a little bit of a pain at the moment, but as Bitcoins gain popularity more and more stores will accept them as a form of payment right along-side credit cards and PayPal.
The break down is where the crypto currency gets converted into real currency. These places are easy to shut down.
See
Bitcoin-OTC, which is an Over The Counter market. Trades from one person to another, and only centralized in the sense that they all need a place to meet (IRC).
And except you are trading them for a centralized currency. The ease of convertibility from bitcoins to dollars is not my issue.
What's the airlines bitcoin payment address?
What's neweggs bitcoin payment address?
ATI's?
What about the mining companies bitcoin address's to pay for raw materials used to make hardware?
BTC must pay for BTC in BTC. BTC cannot pay to run BTC with another currency if it wants to stand on its own and as good as another currency.
Which brings me back to the off the grid data center and Open Source Ecology. If you could get a manufacturer/raw material producer to accept only BTC for power generation equipment, it would force people to convert to from USD to BTC in order to have access to it.
This gives both technologies a competitive advantage.
Plastics? Get a hemp producer to accept only BTC for his hemp crops.
Clothes? Same thing.
Food? Get farmers to only accept BTC.