I predict the following benefits:
- The organiser will think twice about whether or not the meeting is actually needed as most budget holders would tend to be pretty anal about not wasting project funds (certainly the case where I work in this time of funding squeezes).
- The organiser will only invite people who are actually relevant to the meeting, for the same reason.
- With "free" coffee, the meetings should actually be pretty well attended, avoiding the problem of critical people going AWOL.
I rest my case.