> "... that he cannot find two hundred dollars a month. Not for a year — for a month. The credential he is about to buy could fund the subscription for forty years."

> "Not for a year, for a month" of course makes zero sense

It made good sense to me - I read it as understanding that the claim is that one month of a subscription would be enough for them to understand what this technology is offering, and to make a more informed decision. It's a "try before you buy" argument - why would you put down the equivalent of 40 years of something, before giving a version of it a quick try for a 1 month's price?