Repealing Obama-care

Ramesh Ponnuru has a post on NRO saying that Republicans should vow to repeal Obama-care if it does end up going through. I agree with this 100%. I think it is very defeatist to say that if it is voted in that it is all over. A lot of the provisions wouldn't even go into effect until 2013 so there should be a robust effort to repeal it (though, admittedly, it would be better to stop it now).