E.g. Jira & Salesforce both have the same approximate ease of use, and the same approximate level of configurability.
Sales implementations are typically top down. So you sell the salesforce solution to the sales executives. This requires a sales team. And because you are selling into sales management, you need to a good sales team. I have sat on these sales calls, and at times it almost felt like a game of "sell me this pen."
In my limited experience, Jira implementations are the complete opposite. Even in big companies, they are bottom up. The target audience does not want a demo, and may not even want to talk to a sales person, they simply want to get their hands on the product.
Does anyone have any insight into sales costs of other saas development tools?