Never, never....its great having all 3 methods, wfp, mop & squeegee, and washleather and scrim/microfibre etc, i think more will go wfp and trad for domestics, purely for the time saved and more money to earn, but indoor shopping centres will be trad for 99% of them, and i dont think this will change, even with wfp and a wet vac type system, just not viable.
idealrob