Much much less than Noot. Santorum actually could have won if he had gone head-to-head against Romney.
The icing on the cake for me was when Adelson openly stated that he would be happy if Romney was the nominee, and then proceeded to cut Gingrich a check for $10 million.
Personally, Santorum blew his shot for my vote in 2004 when he endorsed Specter in the primaries. He had a chance to show character then and he failed, especially when his campaign centered on his being a fighter who made tough choices.