Right now, I'd say the two biggest names are both from New York(*): Rudy and Hillary. So Pataki is already running third in his home state.
TS
(*)One is from New York, one just says she's from New York.
My guess is he's doing this to have a shot at being the VP candidate on a regionally balanced ticket. Again, he shouldn't waste his time and money 'cause it ain't gonna happen.