And it still is. Above the “I want this” Button is a message: “100% off will be applied at checkout” and a code. Copy-paste into the Discount code field and apply will reduce the price to 0.

There was a coupon code for me, before the checkout. I copy-pasted it in at the next page and it worked.

Thanks for the comment, Dave. Indeed, it seems that they’re charging $1 now. I’ll check what’s going on – in the meanwhile, I updated the article.