New gun owners. They buy a gun, they see "ohhh cheap mags/extended mags" buy, then research. Or they research and say "well, they can't be THAT bad, maybe I'll get a good one". Then find out they're junk and it's not worth the expense of sending it back. Heck, I did it too with some 20rnd P14-45 mags.It's amazing with all the complaints about promag that they are still in buisness.