I use older Brother laserjet printers that I bought secondhand. A pack of 2 off-brand toner cartridges are about $20 on ebay.
Enough people are dumb enough to overpay for ink that HP stays in business. Jailing a CEO won't cure stupidity.
https://www.youtube.com/watch?v=DN44n_F_CPo
Please do watch it.
His point is that this kind of horrible kind of practices corrupt and spread through industries so they need to be dealt with ASAP if you want to prevent it becoming standard.
Besides, you can't be savvy about all fields. Sure, you know about printers, but how many other facets of life you're NOT familiar with and you're duped in making choices that disadvantages you.