It is important to keep updated with ecommerce distribution, modules and core, especially for security updates. Whenever you are taking money and delivering products from online sites it is extremely critical to maintain security. This is very tough with non-distribution packages, but no less important for developers of distribution packages to maintain current packages. I don't know the status of kickstart, and the latest dev releases could be the solution, but I've not read it.
It sure would help to know what is the latest version of distribution of kickstart relevant to latest drupal core security updates.
Maybe, I missed something somewhere. As I recall the latest distribution for production sites does not include latest drupal core.