A very good rule of thumb is: if someone's mentions dividends when discussing valuation they are clueless. It doesn't always work (paying high dividends has implications ranging from clueless management to political pressure on the company) but it's a very good rule that the argument is nonsense.
The fact someone is willing to pay $100 for one share doesn't mean every share is worth $100.
The fair value of a stock should always depend on the expected cash flow you can receive by holding the stock for perpetuity. Nobody can predict the future, so nobody really knows what the fair value is.
But, if you had 1 trillion dollars and still wouldn't want to pay 1 trillion to acquire an entire company, because you feel you very likely can't make that 1 trillion back, then it's fair to say the company is not worth 1 trillion to you.
https://www.bloomberg.com/news/articles/2002-03-31/a-talk-wi...