It only takes one exception (Tom Brady to Tampa) to make idiots forget all the failed examples.
That is a perfect example of a exception.
In football, I was thinking of Von Miller to the Bills. Bills are paying him approx. $20 million/year, and while he had some initial success, was injured 16 months ago, and has been invisible since. Or Pablo Sandoval on the (baseball) Red Sox. $100 million for 5 years, and I think he made it 3 years.