To play the devil's advocate, I'll point out that anyone selling in multiple currencies has to deal with hedging fx risk. For example, USDJPY has been pretty nuts thus far in April (not BTC nuts, but intraday swings of 1-2%).
If you were 1) very determined to sell in BTC and 2) could buy USDBTC options you could probably sell in BTC and limit your exposure to the fx risk.
I'll point out that anyone selling in multiple currencies has to deal with hedging fx risk
Yes, and anyone whose business involves juggling chainsaws has to pay an awful lot for workplace insurance, but Bingo Card Creator doesn't involve chainsaws. Bitcoin proponents love to say "No transaction fees! Can your credit card processor do that?" while perhaps forgetting to mention that the actual mechanism for achieving this involves you juggling chainsaws.
If you were 1) very determined to sell in BTC and 2) could buy USDBTC options you could probably sell in BTC and limit your exposure to the fx risk.