Re: Nobody else makes laser printers?
I'm not sure what the moral high ground is, exactly. When I last needed a laser printer I checked OEM toner prices for a few candidates and chose a Brother, for which £35 per cartridge does not seem excessive. I've recently bought knock-off versions at about £20, but if they weren't available then the real ones would be fine. Unless of course Brother doubled the price because of a lack of competition, but I have no reason to expect that.
The printer doesn't care which type I put in.