Yes, the price is not hard fixed in Bitcoin, largely because it is not really a habitual currency, so any fluctuation will directly impact the actual asking price for everyone.
But still, the asking price for the "service" is in Bitcoin as peteretep was asking. They could've asked an amount in US$ payable in Bitcoin, but the price is given in BTC.
I would argue, the change of price is "just" reflecting the deflation of bitcoin, which from my point-of-view is not terribly different to other price-adjustments across currencies.
E.g. Apple increasing the prices in their App Store in UK£ due to its depreciation (https://www.theguardian.com/technology/2017/jan/17/apple-ios...)
But still, the asking price for the "service" is in Bitcoin as peteretep was asking. They could've asked an amount in US$ payable in Bitcoin, but the price is given in BTC.
I would argue, the change of price is "just" reflecting the deflation of bitcoin, which from my point-of-view is not terribly different to other price-adjustments across currencies. E.g. Apple increasing the prices in their App Store in UK£ due to its depreciation (https://www.theguardian.com/technology/2017/jan/17/apple-ios...)