Not sure what the point is when it costs $100 and is magnitudes smaller and less powerful than a proper one which runs at $200-300 - an upfront cost which is dw

Not sure what the point is when it costs $100 and is magnitudes smaller and less powerful than a proper one which runs at $200-300 - an upfront cost which is dwarfed in the long run by filter replacements, as would be the case here.