The poll is a bit loaded in that bookkeeping is consistently described as "tedious", when such is not always the case.
For components, I handwave any component that doesn't have a g.p. cost listed in the spell write-up (unless the caster has somehow lost a bunch of other gear); but if there's a cost listed then that cost has to be paid and the component has to be tracked.
The most common example IME is the 100+g.p. pearl required for casting Identify. They're always looking for pearls.
Also, things like this are a bit of a money sink, which it sounds like 5e in particular could use.