I disagree, you need to sell your business model just as much as you need to sell your product.
As a customer,
1. I need to know whether this is a fair pricing for the service, because I need to decide whether I should pay for it, or search (or wait) for an alternative. If it is overpriced, a cheaper alternative is likely to appear soon, and it is probably better to wait.
2. I want don't want to encourage business models that don't fit my usage, to avoid the proliferation of such business models across the industry.