Our meetings should be wonderful feasts - far and away the best option for those who are expected to attend. If they become "just meetings", we have failed in our duties to the attendees. Thus, "It takes an excellent meeting to be better than no meeting," puts the onus directly on us to make sure our meetings are excellent.
J. Reuben Clark once said, "There is no church meeting so unimportant that it cannot start on time; there is no church meeting so important that it cannot end on time." I believe this means that it is up to us to value our meetings so much that we make them as effective (in every way) as possible - recognizing that other aspects of our lives are important, as well, and not robbing Peter to pay Paul, per se. Our meeting should start on time, and people should be excited to get there and not miss a minute; they should end on time, and people should wish they could go longer - thus inspiring excitement to get to the next meeting on time and not miss a minute.