I have fun using a bunch of discs sometimes, but I shoot better when I really pair my shot selection with the right disc type. I can reach most baskets on my drive, and if I can't I'm trying to throw the shot that will end up the safest. For holes that I can't drive with a putter, I use a gazelle. I don't have much of a roc range because I can throw an aviar up to about 260 but I can't throw a roc much more than 280.
I've got 2 gazelles one newish and stable and one beat and understable. Newer one for straight or hyzer shots, beat one for turnovers and rollers (I can rolls now
I'll bust out a teebird sometimes if I want a little more stability ie headwind, but 3 discs is all I really need.
If you do want to try a roc or a firebird, just go with dx plastic. No need to spend a lot of money.
Oh yeah, I hate the idea of breaking out a wraith or something to try to reach a basket I can't quite get to with a gazelle (though in a tournement I might take a quick fix like that to have a shot at a birdie putt) People need to depend on their throw to get the distace, not the disc.