@Richord Yes, the idea is you upgrade the ones you find. Not that you buy them and make unlimited money.
These prices all work together, so if you find that you've got a way to make a lot of money very quickly - its a problem we would need to fix. The prices were set so that the whole system should work in such a way that you're making a little gold via alchemy, you're making a little more if have brew potions.
It definitely wasn't the idea that you could buy potions to craft into better potions and make more money.
So it does look based on the suggestions that the system actually is working as intended and the suggestions could actually break it. Please advise if this is incorrect though.