5ml of ink for a tenner, U gotta be kidding!
I know the printers are sold for 20 quid but this takes the michael.
Stick to the older HP printers which take much more generously filled cartridges available for a similar price. To save even more money try the refilled cartridges, I've tried ones from Tesco and they work great.
HP don't need your money, they are making record profits!