Given the demographics of New York and Florida...
New York hasn't even been "in play" in presidential elections in the last two decades, so Jews have little influence in voting there. Plus, it has been losing electoral votes every decade in my lifetime due to population egress (largely caused by leftist state and local policies, I might add). In 1932, when FDR ran for the presidency as NY's "favorite son" and governor, NY had 47 electoral votes, but today it has only 31, and will have one or two less by 2012.
You have a valid point about Florida, which is why the primary focus of campaigning for Jewish votes in recent presidential elections has been Florida, followed, BTW, not by New York, not by California, but by Pennsylvania and Ohio, since the latter two are considered "swing states".
As a Jewish Republican, I agree with you that there is reason to be optimistic that there will be a noticeable change in Jewish voting patterns in the next presidential election, especially if Obama is the 'Rat candidate. Yes, "hope and change", but not the way he would like it.
From your keys to G-d's ear...