[GordonS]

I agree with what you're saying here, but I've also found it really difficult to get corporate customers to sign up on a monthly billing basis - they always want to send a PO on an annual basis, and often don't even have a means internally to pay for software on a monthly basis.

I've been on the other side of this in the corporate world too, and paying for stuff was always a horrible experience taking weeks at best, but often months. We'd always try to use OSS when possible, and built rather than bought far more often than we'd have liked, precisely because of how much red tape there was. Sometimes our preferred option only allowed monthly billing, and we went with an alternative instead, because nobody wanted to go through a protracted, painful, soul-destroying process of getting authorisation to pay monthly.