Champagne is expensive. However, printer ink can be more expensive. A consumer group said ink from printer companies can be 286% more expensive than ink from companies that do not make printers. Printer company ink can cost $846 a litre. An expert said printer ink shouldn't cost more than champagne.

Non-branded ink can be better than ink from printer makers. The expert said non-branded ink is also cheaper than branded ink. It could save people $398 a year. The printer maker Epson said: "As non-genuine inks are not designed or tested by Epson, we cannot guarantee these inks will not damage the printer."