In defense of Prusa, I’ve had mine for six years and have done basically zero maintenance. I’ve adjusted temps a few times when switching filament brands, and that’s about it.

You are right to say Prusa is more of a hobbyist machine while Bambu is closer to a consumer appliance. But within the hobbyist spectrum Prusa is more on the light hobby side these days. My first printer was a Printrbot where I was hand-entering G-code to move the nozzle around and level the bed. Prusa is a dream compared to that.

I like Prusa as a company (and the guy), and I like the community around it. The machine is simple, keeps working, parts are available, and you can understand and repair it if you need to.