Can a new machine be ordered without any display and be run simply by the rocker switches under the armrest and manual adjust of cleaning shoe? Seems there are a fair share of problems with using a touch screen to make adjustments and for general operation. Having to create an interface between a touch screen and general electrical controls causes a lot of complication and places for problems that are usually software oriented. Phantom movements of adjustments being the most common complaint as well as simple failure to execute commands. Touchscreen controls seem to make the electrical system enormously complicated and seems to be too high a price to pay for what it accomplishes? These complicated systems simply can't actually improve solid performance like proper machine design and mechanical reliability do.