Monster Hunter Tri: worth the money?

[2+D]

Ok, Im thinking of buying Monster Hunter Tri, and I have heard a lot about this game, and I would like to know more about the game itself, because I just found out that you can capture monsters, and that made me think that ther e must be more and new things about the game itself, and if you, the people that own the game, could tell me if the game is worth the money or not, because I just want to make sure Im making the right decision.