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I don't have enough devtome earnings to exchange to bitcoin at the moment (I don't really feel like selling DVC either!)
To start a devcoin business, it's ok to sell whatever devcoins you have to.
as I am a new writer, so I'll probably keep lower denominations, maybe going as high as 40$-50$. I'll keep that in mind though! For now I shall continue writing to get those denominations.
If you don't have enough money to buy high denomination cards, then to start the business, waive the fee for the first few customers, because people don't want to pay a fee of around twenty percent. Once you've sold a card, and someone writes a post that they bought one, then you'll get the bounty and will have enough money to buy big cards, and you can put reasonable fees on those cards.
All: If you aren't able to reach the site, my hosting provider is getting DDoSed (apparently over 3 gigabytes of traffic, their firewall could not handle it).
Unthinkingbit: I will put up a coupon code page in which there is no extra fee once I can access the server.