Not a myth, so much as the market for them has softened drastically as the price is twice what it was when the current model was introduced back in 2000/2001, rumors are that production increase when Rolex stopped relying on Zenith for Daytona movements, and started building them completely in house, they have been in production for more than 10 years so many people that originally had to have them already own them. If you were purchasing a steel Daytona in the 1990s through roughly 2006 they were very hard to obtain, there were waiting lists, and because of the extreme shortage used ones were selling for several thousand dollars more than the list price. In markets like the US its a thing of the past.