Seconded! At least, about the brand loyalty, can't speak to the claim of them being stagnant.
I'm 51. I'm on my 3rd laser printer, ever. I shudder to think about how many inkjets I would've gone through, judging by the struggles I have seen in other households of just my own family.
First one was a giant thing from Oki whose main beauty was that it did proper PostScript and had both ethernet (10-base T) and AppleTalk, which we needed. The other ones were from Brother, first a black and white model and now a colour thing with duplex and a scanner. Not great for photos but everything else it just owns.