$100, more likely:

"If the original, single *and* all unlocks were ALL unlocked on or after 4/22/02, you will receive the upgrade at no charge. If you unlocked your single original unlock before 4/22 the update will be $50 for one region or you may purchase the all unlock for $100. This also applies to the all unlocks whether purchased before or after 4/22 if you unlocked the original before 4/22. If you unlocked the original single unlock on or after 4/22 you may purchase the upgrade to all regions for $50."

For reference, I think the "new" V that has all unlocks included out of the box is about $50 more.

I think the new map data includes nearly all roads, as opposed to the "metropolitan areas" in the current data, but I'm not 100% sure.

Alex