Yes you probably should. They only cost about $30 to $50. The inspector will check the grounds of the property near the house, and may do some limited checking inside the house as well. He is looking for any signs of termites, like tunnels, etc.
Most properties in VA don't have termite issues, although there can sometimes be termites in the mulch outside the home. Since homes in this area have concrete foundations, they're not as susceptible to termites as homes in other parts of the US, where they can be a big issue.