Why would a commercial air conditioner be more dependable than one for a house?

I’m not talking about a window unit. But is it called the compressor? It seems to me that suppliers would not want to deal with complaints from businesses and that their heavy duty, commercial air conditioners would be better built with less plastic parts. Do you agree? My daughter got a new one , a commercial one, and it’s huge. Twice the size of one for an average sized house. It isn’t noisy, either, and actually turns off in the summer instead of running constantly. Do you agree they’d be more dependable even if they cost more to run they don’t run for long.