Recently spotted were 2 online retailers baking in a bit of geographic relevance into their value prop call-outs.
The second example was spotted on Mr. Porter. As a fervent online shopper from Canada, I can't tell you how helpful it is to know up-front when a site ships to Canada (rather than finding out the hard way - in checkout). Knowing that instant-gratification of next-day delivery is available to my city is even better. If you don't tell folks, how will they know?
This is the type of site enhancement you can safely add without needing to test, though testing can satisfy your curiosity as to how much lift the tactic provides.