It seems ok if you use your printer a lot, HP is normally one of the more expensive printers to replace ink anyway. but i don't get why it is based on pages. Seems a bit strange as you may print a few pages in better quality than others. Do it mean that you could be wasting ink?
Never been a fan of HP printers, their scanners yes.
Desktop machine now powered by windows 8.1 pro 64bit, no dreaded metro, laptop by Linux