>Sometimes people aren't as dumb as you might think.
Usually, they are.
>Or they print once a year, so replacing the ink cartridge every year is still cheaper than buying the more expensive printer.
Such as here. Doing this is stupid, because buying a new printer is cheaper than buying a set of cartridges for the same printer.
>Or they have no savings and only have access to high interest credit,
Or here, because they couldn't manage money and earned themselves a bad credit score.
>so the interest on the price difference between the printers actually is more than the cost of buying an ink cartridge every month.
If you have credit that bad, you don't need a printer at all. Plus, you can get a B&W laser for $100; less than the cost of an inkjet + a set of cartridges.
Sorry, but every way I look at it, inkjets are nothing more than a scam designed to prey on people who aren't good at long-term thinking or money management.