I just purchased aHP Officejet Pro 8610 Printer for my home\business use.
I received a card with the printer talking about HP's Instant Ink Program. I never heard of it before and when I initially saw the pricing i figured there had to be some fine print. For those of you that are not familiar with the program, here are the details:
So in a nutshell you sign up for the plan and they send you the ink. Once you run out of the ink that came with the printer, you put in the new cartridges. HP charges you for your first month 30 days after you install the new cartridges. They monitor your ink levels and how many pages you print from your printer (which obviously must have an internet connection). Once the levels hit a certain threshold they send you new ink and you send the old ones back.