I don't think I'm discounting the human breakthroughs, the cost of employees, or the previous attempts. All of that is significant work, and has lead us to a scenario where the marginal cost to solve one millenium prize problem appears to be ~$10M. I feel like you're taking a very "to bake an apple pie you must first create the universe" perspective on this; I make no claim about how much money was spent in the past, on whether it was well invested, etc. Regardless of how we feel about it, it's already been done, right?