What is your idea of an eCommerce CMS? A set of boring pages that confirms the seriousness of the company by its mere existence? And this is only because competitors already have a website, which means you need them too? This perception is not uncommon. But this is good news for you. Until competitors realize the marketing potential of Ecommerce CMS, moving forward will be easier.
Website development is an investment in business. When we get down to business, they always bring image and financial dividends. Professionalism plus an integrated approach is the formula for success. Don't let it become an equation with unknowns.