They may be at the meetings you go to, but the ones I run and those I attend are billed on "consumption". At up to $3.75 a can (plus tax & tip), the expense mounts up. Even coffee is billed by the gallon. I just priced a Continental Breakfast in an upscale hotel. For a dollar more, I could buy all the Continental's ingredients plus eggs and bacon with a plated breakfast for the group. The reason? "Looting" from meeting buffets has become enormous and hotels pass along the projected loss-cost.