If I were Ron Wayne, I'd take solace in the fact that in 99 out of 100 similar scenarios, my choice would have been the right one. If he's still kicking himself, he needs to understand that he's a victim of survivorship bias. Being "older but wiser" won't help him avoid the same mistake in the future, because it wasn't technically a mistake at the time. He made a rational choice based on the information and experience he had available to draw on.