I actually like the options these days.
Sometimes one company does a better job than the other,runs of stock dry up etc.
I understand the frustration by the manufacturer when efforts are duplicated but it pushes the quality up because instead of simply making the playfield there is more incentive to make the best version of it.

I think ultimately it will help enable that as well as these guys try to beat each other to the market.
Having a single source for anything rarely is a permanent solution.