You have invested quite some money in your website.
But you notice not much people visit it.
Website is like your retail shop, and web designer is like your interior designer.
Like your shop, after you renovate it beautifully, you need to do some advertisement (flyer delivery, advertise in newspaper etc) to let the right people know your shop so you can serve their needs.
Nowadays, everyone go to Google to find things. Our responsibility is to make sure your website comes up first whenever your potential customer search for your products/services. If your site rank highly, it is like coming out first on the list when people finds you in Yellow Pages.
Don't hesitate anymore. Capitalize on your website ROI now!