This is true, but I think in a different context. If we take a step back and kind of look at the big picture, it might reveal a couple other scenarios to consider to your points:
1- There's not that many MM level domainers with that outreach power...I bet he already had a buyer in mind before grabbing that particular name. 4 months is an an easy wait if you have a good chance on an $xx,xxx sale.
2- These opportunities are there, for sure, but they don't come fast, and they are not to be depended on.
3- If these kind of names DO start selling regularly at those prices, we're in deep sh$t. We should be embarrassed as investors. Unless, of course, its only about the money not the quality.
I don't think we should be steering people into accepting these types of names/sales as the "norm", except when they happen for people like MM.