At the same time sailing dont bring much revenues in as it is not a large TV sport.
The last Summer Olympics I looked for sailing and couldn't find it. The Tivo doesn't care what its on. I don't know if it would be as worth watching as women's curling but it might be close.
What is the reason for replacing the Tornado? Even if differnet manufactures produce the same design its still a one design isn't it? If there are difference's that the governing body deams an advantage to one manufacturer or another then all they have to do is make a rule about it. Its the same in all sorts of racing, from carts to F1. I've never been on a Tornado but they sure look like the ride to have. That is if you're on more than a H16 budget.