Buying Advice
I've been advising clients for years that the way to choose a printer is to start with a list of requirements (which I help them with, including things like 'at least 4 inks, not Lexmark or HP', draw up a shortlist without looking at the printer price, then look up the price/availability of cartridges from 3rd party sellers (my favourite is prink.co.uk) and choose the cheapest. This will often be a Canon or Brother because of their simple large tanks that are cheap to clone.
Basically TCO of course, but that concept seems completely alien to a lot of people, judging by the surprise exhibited at my 'cleverness'! Or maybe I just happen to have a relatively stupid client base.