For those of you who have ever been part of a debate concerning the koinonia church model (e.g. home church) versus the ecclesia church model (e.g. the mega church), I recommend Aaron Stern's recent blog post, "Half Church: there's more to it". It offers some helpful insights regarding this subject.
As a sub point, I particularly appreciate when he writes, "What if differences in biblical interpretation is a reminder to focus on the absolutes of Scripture and embrace unity?"