Nice Article Jon!
We do web development and db work for clients and have been using a fairly good host - but my gripe with their company is that they have a ton of other db instances on the server along with ours. This is a concern for obvious reasons. So I add that when shopping for a host it would be helpful to determine the # of instances that the host limits each server to. I'd be interested in hearing suggestions from other members if anyone has a great host that keeps the # of instances down to a fair amount.