Because you like mindlessly mashing buttons. Or because you're really into those animes where one guy mows down thousands of enemies in seconds, because that's fun and interesting right?

If you've never played a dynasty warriors game before you'll be happy with your first one... after a few dozen of them... and some Gundam ones they really don't offer much difference in the games. I'd say if its your first and you love Zelda you'll have a great time with it.

Buy it....or else I will have D21Lewis come to your house and lay the smack down on you.  the end

co op is very fun. also if you are a hardcore zelda fun, you will keep smiling during all the game.

I think everyone have said everything
It is Amazing! But sometimes, only sometimes the music, sound effects and damage is late.

The characters are amazing with their unique skills. And the cut scenes looks amazing!

Or...you can just try it out at bestbuy???

I was never afraid of the game being repetitive, as a 'hardcore' Monster Hunter fan I don't mind killing the same enemies over and over. The difference is that in MH the monster are quite challenging (some even if you fought the monster dozens of times before) so it was never boring for me.

Short: Because it's fun.

Long: The points you describe are the same for me. Hyrule Warriors was my first Warriors-game. And it's actually a lot of fun. The braindead enemies are irrelevant, because the main thing in the game isn't hack'n'slay. You can take out thousands of enemies and still lose. Often I ignore these normal enemies completely and just run to the next point I'm needed. And that's the point here: it is more real-time strategy. You have to decide fast, which enemy commanders to take out, which keeps to conquer and so on. Often the level throws multiple objectives at you: the main stuff you should do, some sidestuff another character asks, calls for help from your commanders and many fortresses to conquer. Taking the right decisions decide about you winning or losing. And if you start mowing down thousands of brainless enemies, do it fast as you don't have time for it (in harder levels, in the beginning it isn't that difficult).

The game itself has OK quality, I wouldn't say it's a masterpiece, but as it gives you fun while playing it is worth it's money.

Exactly the same here. And I adore it. It's awesome. Get it.

I'll do it, too!

When this game was announced, I hated the concept.  Now, I'm like "Who am I kidding?".  I'm gonna buy it in a few mins and maybe play some co op this weekend.  I don't have the highest of expectations but I don't think I'll regret the purchase.