Well, you should really.

Why?
Here are some reasons:

Subspace Emissary. It is sometimes cheesy, but it definitely is very fun.
If you like a sidescroller, Smash Bros/Nintendo style, Brawl is for you.

Trophy collecting. If you're the player who likes completing an entire game 100%, or if you like obtaining in game things, or simply want a mode to pass the time, then Brawl is for you.

Stage builder: MAKE YOUR OWN BRAWL LEVELS WOAH.
Well, yes, it is limited, but hey. You can still make some great contraptions to fight on with it. If you don't mind fighting the CPUs, but still, I enjoy doing that on the game as well.

And WiFi. With Anyone is lame, but there are plenty Friend Code sites for you to use to find other people on your skill level.
Like Smashboards, friendcode.com, etc.
And, of course, ZU. This place has a nice big Friend Code exchange thread!



So, yes. Get brawl. Nao.