Got a Canon ink jet and a third party tank. Win win. Never ever will go with HP again, after buying the biggest POS HP inkjet printer. First printer shipped broken. Second wouldn't feed paper after a year. Not to mention the color ink drying out. Brother Laser is amazing. I am a small business owner, Civil Engineering firm, that prints plans constantly. Epson may have the future locked up for those who print large scale plans. Otherwise Canon and Brother all the way.

Partially because some people don't want to spend that much money on something they'll rarely use (cheapest I found from a quick search on amazon UK for any of the Eco-Tank series was £185)

Just looked this up as I have not heard of it before.

"Cartridge-free printing — comes with up to 2 years of ink in the box" - I really like this bit.

Any idea how this works from a dollars & cents perspective?

They're filling radio adverts here in the UK about them, claiming "new tanks cost as little as £6".

If replacements won't be needed for 2 years I figure most people will expect it to have broken and been taken off the market by then...

They are excellent document printers. The ones I've used have been okay for printing photos, but that isn't what they are tuned for.