Sometimes I like to check the past submissions on HN, what was trending a year or two ago. Vast majority of the "look at this cool SaaS Product" submissions is a dead link. But don't believe me - see for yourself.
I'm not against paying, I do believe proprietary software has a place in the market, but I'd rather pay a bigger, 1-time sum for guaranteed availability over paying smaller fee for a longer time, while hoping that there will be still a company to accept my payment next month.
Without context... maybe:
1) Maybe they aren't from america.
2) Maybe they haven't see clearly how they will save/earn with the software more than it costs (marketing issue?)
3) Maybe it's explained in their complains
Say for example something like a nifty project roadmap generator.
You'd like to use it. You would be willing to pay for it, but $10 a month is just way more than it would be worth to you.