The only product I really want to punch in credit card info and GO is commodity software (e.g. AWS EC2 or a domain registration service.
I think wires sometimes get crossed in pricing/sales models, where an enterprise product gets priced like commodity software ... but that's usually a sign the company is immature. There shouldn't be a sales team for software that costs 2-3 figures. Software costing 5-6+ figures absolutely requires people in the sales/onboarding process, because a big part of what I'm paying for is support.