Im sure someone brang this up before, but having got a spellcaster to 20, i find it really is annoying.

I like the idea of having 1 space to hold what would otherwise be tonnage of random materials such as collectable, ingredients, gems, arrows/bolts. Hell even necro 4 has the shield, sigil, tome, and tapestry bags. So what would be the problem with having an additional bag for something bulky that takes up a lot of space like spell components. Its just a pain to have to dedicate almost a whole tab of inventory slots to hold spell components.