I don't know, I like them and I find they add a dimension to the game that jives with my simulationist leanings.
When the Keepers of the Gate were going to leave on an overland journey that would take 2 to 3 weeks and the wizard Martin the Green was planning on casting
detect scrying everyday, he had to figure out where he was going to get 14 to 21 minature brass hearing trumpets in the time before they left.
When you fall thirty feet and your a handful of your glass rods break limiting the number of time you can cast lightning bolt.
Gum Arabic (or Thrician Gum as we call it in Aquerra

) is not all the common a thing in certain places in the world - so maybe
invisibility is not so common a tactic in the Northern Reaches, or how cool and flavorful is a scene where the party wizard casts his spell and reaches out and rips off the top of a reed before casting his
water-breathing spell.
Playing a wizard, I love having a list of crazy items on my sheet and going through them and thinking about how I keep them all, from a jar of molasses for
slow or wrapped up slices of giant squid tentacle for
Evard's.
