That means the price is negotiable. Rich users pay more, poor users pay less, both users get value, producer makes a profit; everyone wins.
Customer: Sorry, I just don't think it's worth the price...
Sales: Oh really? Because we've identified 42 critical vulnerabilities in your code base
Customer: Do you have an installment plan?
Customer: We know the software runs on java 7. We don't need to pay you 100k to find out.
Sometimes it is also possible to brand the exact same service in different ways.
If you have a SaaS that is fully OSHA compliant on all tiers, it may be worth it to not mention the OSHA compliance on lower tiers, but only offer it on the Enterprise tier for example.