Kirby vacuums. They're pricy because they basically do door to door selling and there's a huge markup. For example the starting price the guy quoted was 2k, I declined a few times and he went down to 1k. I later got one from my parents who bought one but didn't like how heavy it was.

They are monsters. It's basically a small shop vac with a ton of attachments, including a carpet shampoo scrubby thing. Replacement parts are easy to find 3rd party and I've never really had to repair it except replacing a belt and removing hair from the brush. Pretty sure they have lifetime warranties too.