You make some good points, and HN has been such a boon for finding new services to integrate. Of course, if we could all do it in-house reasonably we'd all be

You make some good points, and HN has been such a boon for finding new services to integrate. Of course, if we could all do it in-house reasonably we'd all be doing that no doubt, but it's just not feasible, even for large corporations. Who can justify the cost? Security is always a concern, and I do hope most services have taken heed of online security breaches in recent history. However, I don't find it an argument against using SaaS because most of the time, the security from doing software in-house is dispelled by poor security in meatspace, i.e., social engineering (which is WAY easier to do than people suspect).