The price should approach the limit price if you assume there's no initial cost of making the software. And for most SaaS, there's still an upkeep cost the comp

The price should approach the limit price if you assume there's no initial cost of making the software. And for most SaaS, there's still an upkeep cost the company must pay. Free software just isn't feasible in the real world past the things that can benefit everyone at a very low cost (where some entities will take it upon themselves to employ people to focus on, for example, the Linux kernel).