You are wrong about torches!
The academic rigour of this post is abysmal. My sources are chudded out pop history blogs and probably-vibecoded web tools but I think I'm mostly correct anyway.
People hold torches in front of their face in movies for dramatic lighting. This is a terrible way to hold a torch since you'd be half-blinded by having your light source in front of your face, and you would be constantly showered by hot bits of ash. Much better to have a longer torch that you can hold over your shoulder, well away from yourself. Three to five feet is probably good.
Now we're carrying around a bunch of broomstick length sticks. They need to be pretty sturdy or they will catch, and we don't actually want the stick to burn. We're holding that. But that means the bundle of six that you bought for a single gold piece probably weighs like 12 pounds according to this random timber weight calculator (For reference, I used fresh cut pine)1.
The standard coinweight is supposedly based on a one ounce silver coin, but I've seen people do the coins:pounds conversion at 20:1. That gives us a range of 190-240, so we'll split the difference and call it 200cn for a bundle of torches (That is one slot for most rulesets that use slot encumbrance, which is handy).
I don't think the 1gp/6 is absurd, it's certainly not the most absurd price on that gear list. I do think there is room for a variety of grades of torch based on fuel, since something like bees' wax or whale oil would be more expensive, but burn brighter, cleaner and longer, while pine tar would burn fast and dirty. Probably 1gp/12 for cheap torches that burn for 2d6 turns, 1gp/6 for standard torches that burn for 1d6+6 turns, and 5gp/6 for good quality torches that burn for 12 turns.
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Reading: Werebeasts of Hel by Asa Drake
Listening: Starship Velociraptor by Galactikraken
Another consideration, this length and weight probably makes torches more effective as weapons than we usually play them, though again, that puts your light source in front of your face so you would be effectively fighting blind. Still, we're probably looking at Weapon Class 8 (spear), first strike against a sword, but generally worse than a purpose-made weapon.↩