In memory of my grandfather, Walter Rosenthal a"h, whose 9th yahrtzeit is this evening, the 16th of Tevet. He was described by his Rabbi at his funeral as a "shul Jew," always committed to ensuring that he did everything that he could for his out-of-town congregation.
Rav Moshe Feinstein was asked about a shul that was having trouble with its weekday minyan. Apparently, the time of the minyan was too early for some of the people who belonged to the shul, and they wanted to daven elsewhere. However, this put the daily minyan in jeopardy and thus the question was whether the minyan should be abandoned or whether people should be pushed to help make the minyan.
Rav Moshe ruled that since this shul had a permanent minyan, it was incumbent upon the members of the community to keep it going. Even if some of the people chose to daven instead in a nearby Beit Midrash, which may be a preferable location for davening (although perhaps only for people who spend their day learning there), there should at least be enough people who make sure that the shul in question is able to maintain their daily minyan, insofar as it was well-established and constant. However, Rav Moshe notes that the Beit Midrash should be assured of a minyan as well, and if the davening time of the shul is too early for people, then a rotation should be set up so that no one has to overextend themselves every day.