I didn’t say they were plastic. But I’d be surprised if such yo-yos did not exist. I simply don’t own many plastic yo-yos. In fact I’ve tried 3 plastic models including the Triad (not counting 2A and 4A yo-yos). I honestly like both of them (the Diffusion 2 and Antagonist) better but I won’t argue they “outperform” the Triad in a generic sense.
Obviously you like the Triad and so do a lot of people, but I am certainly not alone in the opinion that it’s overpriced and disappointing.