I heard many great things about this game from online friends, and asked a real life friend to bring it over so I could give it a try, and after 2 hours I gave up out of boredom. I reported this to my online friends, and they responded that I couldn't get past the "tutorial" phase and that the real fun comes later (like how many of the fans here are declaring).
I can't deny that the game is more fun later on, but the introduction does not do a good job of inspiring me to play through the game. I found it difficult to "slow walk" over to talk to people in town without running and staggering past them, and later my online friends told me that I don't even need to TALK to the townsfolk, and in fact they encouraged me to ignore them and just jump right into the heart of the combat. They also told me that I should just ignore the offline single player mode and only play online.
Now, don't get me wrong, but if I need people outside of the game explaining to me how to ENJOY the game, something is terribly wrong with the game itself.
I'm not trying to rag on Monster Hunter specifically, but a whole list of modern games that seem to do this. Nobody would complain if Yahtzee played one hour of Pac Man before reviewing it, but with a game like Monster Hunter that is unacceptable, and that reflects the game more than it does Yahtzee or ourselves. Games are changing, and as I get older and have less free time for myself, I want games that either jump straight into the action (Classic Mega Man, Classic Mario, Team Fortress 2) or integrate "tutorials" with the level design itself (Portal, Plants vs Zombies).
Still, that's just my personal preference. As a critic/reviewer/humorist, it behooves Yahtzee to play as much of a game as possible so he has more information to deal with. He could still easily joke that he "only played 4 hours" before he got bored and quit where in reality he played through the entire game (in some instances I think this may be the case, but it's only a hunch).
So as far as Yahtzee's job is concerned, I think he should play as much of a game as possible before critiquing it, but as far as the game itself is concerned, we as gamers should not have to suffer through "boring" parts in order to get to the "fun" parts. There already exist games that are fun from the first moment we start it up, so we shouldn't have to settle for less. I think this is something that fans and non-fans alike can agree upon.
-Pi