So Who Wants to be the Lt. Governor?

I never understood the lure of being Lt. Governor here in the state of Missouri. Except for Mel Carnahan, neither Ashcroft nor Bond used the position as a stepping stone to the governorship. Now we have a new candidate seeking the office. Rep Sam Page, a democratic representative from St. Louis county, is seeking the party nomination for Lt. Governor. It seems that this office is popular and already had candidates lined up prior to Page's announcement. Do all of them see a weakness with Kinder? What does a Lt. Governor do that would be scrutinized? Your comments and knowledge is welcomed.