Never the point of pokemon at all, which is why there are minigames in the handheld games, which is why they are in all of the other stadium games, which is why they were in hey you pikachu or in pokemon channel, orwhy they are in pokemon pinball.
Christ dude, Pokemon practically stands for minigames.
No, 3D representations of pokemon do not justify putting down 50 dollars. If you want a good Wii game, pickup Resident Evil 4 instead, it'll save you twenty bucks. Pickup Battle Rev. used.