My peeve is player's packs that only have distance drivers. Like you said, most players end up set on what brand/discs they throw. It's the newer players who would benefit from discs in player's packs....but they shouldn't be getting distance drivers. I know when I started tournaments, that's all I got and some still just sit on my shelf.
Why not take them to your favorite local store and trade them in? That's typically what I do with my tournament "freebies". Even if they only give you store credit at least you can use that towards something you'll actually throw.