I agree with the others Shaun, but probably for a different reason. Whether the performance of our equipment is average or exceptional, we, the technicians, make that piece of kit
WORK FOR US. As John stated recently, the technician is the most adjustable and and flexible part of the cleaning equation.
Where your suggestion may stand a chance of being successful is with reliability and quality of back up service. I think Nick Hyphen Cornwall would win that one no worries
Safe and happy cleaning:)
Ken