The more players in the game, the cheaper the game is to play.
If I woke up tomorrow and saw another 20 companies were making poly mags, I'd be happy. You'd be picking up windowed G3 PMAGs for under $10 each soon after.
And, since I've seen what large wholesalers pay for the PMAGs in bulk, I have to assume margins are already in the triple digit percentages % on them.
And, heavy competition also drives advancements in technology.
