IF they set the highest price for everything at 25 million I would be okay. I would not be okay if they do this and set the highest price for everything at 100 million. That's NOT what the highest price of items on the market currently are.
Not saying you're saying they should do that, but just pointing it out, in case the devs decide to go with price caps . . . That said they won't.
EDIT: To be clear nothing they've said in this thread makes me believe the HC devs are considering price caps. With everything seeming to show that they like the Market as it exist in game., as a sort of min game.