MY guild does not have snacks at all at our meetings. We meet once a month for an hour and then on our full day work day no snacks are expected. On occasion some one brings something in but we bring it out at lunch time. Snacks are a gracious addition to an evening or meeting, but it no one wants to bring them, I would let it go. Either their eyes will be opened and they will pitch in or maybe no one really wants them (or needs them).