I understand small business owners, they want to save money. Yet when it comes to deciding on whether or not to provide their Smart Phone visitors with access to a properly responsive designed web site, it really is a no brainer. Visitors don't have the time or patience to mess around with pinch and pull web sites on their phones/tablets. As well, if you have ever tried to navigate around these types of sites you know that finding what you want is arduous: hard to accomplish, marked by great labour / effort.
The bottom line. Do you want to make your visitor work needlessly to uncover what they want from your web presence. If so, then stay with your desktop version of your web site and let your competitors update their presence to be mobile friendly.