Bill, I've been around this business since pull-chains and pusher bars, and remember when the on-demand conveyor took the industry to a much more refined operational level. That's when we happily got rid of spinner tire & wheel washers and steam jenny headaches... and learned to love the comparatively low maintenance of horizontal wheel washer brushes and the c-t-a.
I sense the same evolution will occur when equipment manufacturers adjust to a non-rolling wheel technology. But it likely won't come without equipment supplier resistance because anytime the status quo is challenged by progressive improvements, the guys with a warehouse full of inventory and technology that appears to be obsolete usually don't concede without a struggle. Same thing was true with the transition from poly bristle brushes to cloth washing material. Bottom-Line: Change that brings improvement is inevitable.
Hope this adds to your understanding.