@fcsp correct, but one moment you might pay 0.005 BTC for a 100€ purchase and a week later you might pay 0.007 BTC. I don't have these fluctuations and vola in prices with my purchases. And look at it another way. You keep your assets in Bitcoin, even if you pay in Bitcoin it will be converted to Euros at point X. Let's say you have assets of 2 bitcoin. Your monthly expenses are 1,500€ (food, insurance, rent, car,...) - If the exchange rate is 25,000€, you have to spend 3% of your assets for the monthly costs - If the exchange rate is 15,000€, your costs related to the assets suddenly increase to 5% -> Despite inflation of currently 10%, I never have such fluctuations. How does your employer pay you? For sure also in Euro