To answer this question I refer to Chapters 18 & 19 in the book The Purpose Driven Life by Rick Warren. Warren says that in fellowship size matters: Smaller is better. In real fellowship people experience authenticity, mutuality, sympathy, and mercy. Cultivating a community takes honesty, humility, courtesy, confidentiality, and frequency. I have strong predilections for small groups and often feel that I am constrained to be dishonest in large social gatherings where conversations always tend to take place towards the shallow end of the pool.