General question without delving to far into the pros/cons of these providers. For a business "new" to online sales processing is there a clear standout provider?

The industry and providers inherently have multiple layers to their contracts from pricing standpoint… My concern is integration to Netsuite, and finding a reasonably priced solution which meets the needs of a small online business. Our business model does not lend itself to online sales, however we wish to be ahead of the curve. So adding the functionality is "wise" step but we wish to understand from the Netsuite user community the best choice.