It was on best-seller lists for two months straight & created a cult following.
Because of the limited supply & huge build up behind the launch, it sold out in 30 minutes.
They sold the product on the domain the 375 number was the main thing they wanted everyone to know.
What's important to note is that because that was their main focus, they had to back it up in a big way to make it believable.
The biggest deliverable that likely nudged many to buy was a live apprenticeship program where they would meet Neil & work with him personally to develop their pick-up skills.
Overall, this launch was truly the ultimate example of using exclusivity & scarcity to sell a product.