The first issue is to get a multihull class included in the 2012 games, then the platform choice becomes relevant. I am still a strong supporter of the Tornado and will continue to be until I see something that makes more sense. the tornado has quite a few things going for it and so far little against it as a viable choice. The 10' beam on the boat does make trailering the boat more difficult than something with an 8'6" beam, but it also makes it a very stable platform that is both fun and challenging to sail.

The tornado class is a strong class that is focussed upon Olympic level sailing.
The boat itself is a physically and mentally demanding boat that requires the sailor to raise his/her level of skill.
It is a very well controlled one-design class that allows a certian amount of development in hull shape as long as you fit within tight measurement templates.
There is a great deal of energy placed into refining sails and masts for the boat.
What is percieved as an expensive platform is not looked at from a longevity standpoint. A Tornado has a racing lifespan of 8-10 years. How many Lasers are able to be raced from one Olympic cycle to the next competively.

Show me another class that would do well in the Olympics, be at the same level and can stand being elevated without harming that class.