I don't think Bitcoin fixes dynamic prices. One place I see this frequently is on Amazon or Uber. If I check into a certain item or check the application to see the price, when I come back later it is always a little higher as it knows I'm already interested.

In a Satoshi-revolved world, the same thing would happen just in the unit of account satoshis. I also don't necessarily think it needs to be fixed - in the end everything will level out with supply and demand.