Those of you that like Discmania should realize that it is Innova in Europe, it isn't a separate brand. From what I understand, DGA is a subsidiary of Discraft so I'm not sure if that really qualifies as a separate brand either (like GMC and Chevy).
Anyways, I'll throw whatever if it gets the job done and does what I need it to. I'm not brand loyal to the point I only use one. I honestly think that it is silly to do so as you're limiting your game an options. What benefit would a person be getting if they just limited themselves to one brand? I can see that if you're sponsored and their rule is that you can ONLY throw their brand. Gateway isn't like that, they can throw any other brand they want when they're sponsored.
http://www.youtube.com/watch?v=c0TSuRXFd3A
To be topic relevant I have discs from Millennium, Discraft, Gateway, Innova/Discmania, DGA.