Subweapons were once a lot more important. This was before your characters could summon the legions of hell, cast spells that would make Gandalf turn green, knew Kung Fu, and were more agile than circus acrobats.
Take Castlevania III for example. Every speedrun I've watched of that game is pure Holy Water spammage. Holy Water seems to be the entire key to getting anywhere in that game.
Then you have PoR. Did that game even HAVE holy water? I don't remember because if it did, it wasn't useful to me
