Online Ordering Oddities

I decided to subscribe to The Week* so I went online to place my order. I went with the 50 issues subscription but chose bill me later. The next page to display offered to give me eight bonus issues (making my subscription 58) for the same price if I would pay now with my credit card.

Should I always first choose the “Bill Me” option when ordering online? What have you experienced?

* The Week is great; it’s like The Economist’s smaller, poppier brother. They make excellent companions, well, at least before The Economist’s slide into not-so-hotness.