I am experimenting a bit. If this new option turns out to be popular, I will keep it. If not, it will disappear.
I occasionally receive requests from readers asking to purchase a single Plus Edition article without having to pay for an entire subscription. Not everyone wants to pay for a 3-month or 12-month subscription if they want to read only one Plus Edition article. Therefore, I have added a new option: anyone may purchase a single Plus Edition article as a PDF file.