....and that is relevant....how exactly?
Everyone has a different brain with different thoughts, feelings, emotions, and opinions. People can use whatever they are comfortable with and can afford on their budget. Furthermore, people restore and rebuild every kind of vacuum no matter who or what brand it is.
Telling someone to throw something out that they are in the process of repairing and asking for help to repair and just telling them to buy something else is NOT helping anything or anyone. Yeah sure, lets just throw away a perfectly good shampooer that can be repaired with $10 in parts and buy some gigantic $600 commercial extractor (which is just a rebadged Rug Doctor) just because some influencer or whoever tells you to. That ain't how life works, chief. Maybe it works for them, but that doesn't mean everyone else wants it. I know I personally would never want that monstrosity. I have my ProHeat Pet I got on clearance about 8 years ago for $79 and its been the best shampooer I ever had.