I bought an HP Envy 5000 from Argos for under £50 and joined the HP Instant Ink scheme. I pay £1.99 a month to print up to 50 pages a month, plus a rollover from unused pages from previous months. New cartridges arrive whenever the printer senses a replacement is needed and they arrive in good time. So for £24 a year I get a continuous supply of cartridges when needed and I have absolutely no complaints with the HP scheme. It doesn't matter if I print 50 A4 photos a month which are really heavy on ink as the scheme works on pages printed, not ink used.