I really want to say that I don't care, but the more I think about it, the less interested I am.
Some of these reagents are supposed to be really expensive. So the game would have to turn into a "Monte Haul" loot fest to ensure players can afford them. If it doesn't, players will complain about the lack of loot to pay for stuff, we already have stuff like that w/out having to spend gold on reagents, and if it does, players will complain about that too. Players are already complaining about bags to carry stuff in, is it really a good idea to add more fuel to the fire? Encumbrance will eventually get fixed, one hopes, so some of the lowest strength characters in the game are going to be even more limited in what they can actually carry, because reagents should also have weight, and you're surely not going to just carry one or two of each.
Maybe it's still that I just don't care, but do believe that it's impractical, on it's face anyway. If we go with "BoH that can only carry reagents" the rules lawyers are going to have a field day. They're already spazzed out about items that "creatures shouldn't have". So I'd say it's better to just leave well enough alone. Better a few "but my immersion" threads, than flame wars over "special rules", or the availability of reagents.
