Similarly, you might be surprised how much it can cost to support a SaaS service scaled for a great many 500K+ views/month sites: infrastructure for recording the data and rendering it back out as reports, monitoring and growin/reshaping that infrastructure as needed, meeting user support expectations, etc.
The SaaS service is operating as a business, not a pubic service.
If there is something I learned releasing simple software and slapping websites together back in the late 90s, is that there are no end of people who are convinced you are missing a trick by not offering what they want under the conditions (price usually being a key one of those conditions) they want it. You can't make all of them happy, you can't serve every market expectation, to try is to guarantee burnout of you business, yourself, and (if more than a one-man-band) your people.
Of course if they've genuinely missed a golden combination of features and pricing strategy, why not capitalise on that untapped market? Or use another product that is trying to tap it already.
