It sounds like an unnecessary question, but I pose it to start a deeper discussion. Knowing your stores as I do, you all run credible businesses. Customers respect your knowledge of the business; therefore, you have a solid reputation in your community.
For a second, imagine that you stopped bringing in new products, remerchandising departments, adding Power Programs, training your employees and providing great customer service. Customers would start to question your business' credibility, and they go somewhere else to buy hardware.
Think about your web site like that. If it's not updated or new or exciting, customers will not view it as credible. They will stop visiting your web site and go to another one.
Consider your web site another storefront. It's connected to your business but is a somewhat separate entity. Keep it updated; keep it current. Your customers will notice, and then, your web site will enjoy the same credibility that your business does.