Consider using an alternative print-on-demand service that offers a storefront, such as BookBaby’s BookShop or Lulu. For most authors, I recommend CreateSpace for Amazon sales, but if you can drive significant traffic to a smaller storefront, it may be worth exploring other options. Some print-on-demand services may let you continue to use CreateSpace for Amazon, while supplementing by using their storefront for traffic that you can generate (however, you must check on this point, as some publishing services may not allow it).