If you have any substantial business, you already have a sysadmin on your team. He's not doing his job if he has no local versions of almost everything that is online. He should be staging everything locally, before deploying to the cloud. The currently very popular way of deploying everything live, without any testing, or staging is one of the reasons behind current crappy state of the internet.
I disagree, with very large companies, you have no "local" sysadmin, and no local versions of anything. Especially if your IT department is actually its own company.
