^you act as if beating a Lvl9 cpu somehow shows how good you are. cpus don't play like real people at all, in fact facing cpus constantly makes you play WORSE.
http://www.youtube.com/watch?v=TSkCGa_J5wY how many times have the ice climber cpus done that to you? exactly, but face a real ice climber player and they're gonna be constantly trying to land a death grab like that on you. Facing cpus all the time force you (and your buddies whom i assume do the same thing) into a very predictable pattern, one that works against the cpus and really only cpus, a real player will neither play like the cpu at all(once again, look at the ice climber video), nor will they repeatedly fall for the same tricks over and over like a cpu will(least any good players won't, they'll adapt quickly if they're doing something that got em punished, cpus willl continue to fall for the same stuff.)
I can't stress it enough, face someone who's actually good with the characters, someone who knows what they're doing with falco fox, etc, both in melee and brawl(so that way you can also learn just how drastically different each game plays, the games physics and the changes to the characters are so drastically different between games, that most characters you don't play even remotely similar to how they are in the other game) because again, as i said, you and your buddies "thinking" your good, and the reality are two very very different things, if y'all go to a tournament and see some of the ways how people use the characters you'll realize just much catching up y'all need to do.
My original points still stand, having the c-stick allows you to do things that just aren't possible without it, it gives players more options in a match, and anyone who refuses to use it are only hurting themselves in the long run, from advanced techs, to better control over their aerials, the c-stick has a wide range of important uses other than just quick smashes, things that are essential in truly becoming a better player.