alt Hacker News> maybe nothing is priced right
What does "priced right" even mean? For whom? When a public company makes billions in profits by selling insanely overpriced hardware, then that's "priced right" for the shareholders.
When a supermarket gives out 25% discount stickers to use, then the price of the good is closer to being priced right for the consumer, as long as you apply the sticker. There is, of course, no reason to assume that the supermarket would operate at a loss or close to cost. These 25% are already priced in and anyone not using the stickers is paying extra.
Nothing has been priced right ever since they've (the collective of anyone willing to sell something) figured out that they can ask for however-much people are willing to pay, which is quite more than what MY FELLOW HUMANS would need to pay.
For everyone else, who aren't willing to pay deliberately inflated prices, there's usually always some form of discount for some product, somewhere to be found.
In the context of investing there is a correct price for financial assets that is given by trading everything back to dollars in the present. There is one remaining parameter (the exchange rate between future payouts on different dates, the "discount rate"), but all the subjectivity reduces to that one number.
However if everyone is deluded about what the future payouts of different insturments will be, you can get $10 for $1 in one place and $0.001 for $1 in another (given that in both cases the influence weighted participants think they're selling you a dollar). That invalidates the picture of reducing the unknowns to the discount rate.
In your examples, you're talking about goods and services, which have different values to different people. They have an equilibrium price but as you say, that's not the "right price for everyone," like there is for say a bond.