It was still a Tsubaki chain. I said "cheap" not "junk."
No frills, no nickel plating, no O-rings. I regularly measured it to make sure it wasn't getting past the wear limit, and I replaced it well in advance of that limit.
Then again, maybe I got away with it because it went on a 125...
Point taken, though. Parts need to be at least over a minimum quality threshold or they shouldn't go on the bike in the first place. And yes, quite often "cheap" ends up being expensive when said part fails and causes collateral damage. Again, point taken.