To get into Victoria 2 or 3?

Title! I have HoI for the 20th century and the 19th is the other one I like, so I'm thinking of trying Vicky. Obviously the new one is newest, but also expensive and the reviews seem a bit too mixed... but I'm guessing improvements should keep on coming.

For info, I enjoy both developing my nation and map painting for the full experience. Going to war is fun! So, should I seriously consider Vicky 2 instead of 3?